Change life cycle,meditation program vs holosync,the secret of nimh tv series pepito - Step 2

ROCKS come in cool colors, shapes, textures, and sizes and are found all around you, but how much do you REALLY know about them?
This week we continued with the FOSS curriculum and the unit on microscopy and microscopic life forms.
Brine shrimp life cycle (image courtesy of Bridgerland Audubon Society, Stokes Nature Center, Utah). Shrimp larvae were most easily viewed at 40x (4x objective lens) or 100x (10x objective lens) magnification. The first activity asked students to measure the diameter of the field of view using a 50mm ruler (clipped onto the stage) for each objective lens.
Students will continue with their microscopy unit this week and move on to observing live specimens on Thursday or Friday. This week I invited one of my collaborators, Bob Ackley of Gas Safety Inc., to lead a tour of natural gas leaks in the Curley School neighborhood.
We needed to walk no further than one and a half blocks away from the Curley School before we came upon our first natural gas leak. As many soil microbes and all trees require both oxygen and moisture in soils to survive, natural gas leaks cause serious harm to organisms found in urban environments. Bob shows the class how to use a bang bar and a combustible gas indicator to measure concentrations of oxygen and methane in the soil above a gas leak. Students were able to observe gas leak damage to organisms in their urban environment, first hand. All in all, the tour served to reinforce the lesson that I taught last week and also demonstrated to the students just how pervasive natural gas leaks are in the urban environment that they inhabit. 1.) How is being in the classroom different than you thought it would be, or different than your informal summer experience?
The most challenging aspect of the GK12 experience so far is the discrepancy in classroom experiences amongst the teaching fellows.
The most rewarding aspect of the GK12 experience so far is getting to interact with the students and feel like I am generating excitement about learning and the sciences. Before GK12, I don’t think I realized the depth of the discrepancy in classroom experiences across schools in the United States. 8-bit MicrocontrollersMicrochip continues to expand its innovative 8-bit PIC® microcontrollers with Core Independent Peripherals (CIPs).
16-bit MicrocontrollersOur 16-bit microcontroller and digital signal controller families deliver performance, peripherals, software and hardware development tools. 32-bit MicrocontrollersThe PIC32 family delivers 32-bit performance and more memory to solve increasingly complex embedded system design challenges. Operational AmplifiersWith Gain-Bandwidth Products (GBWP) ranging from 9 kHz up to 410 MHz, Microchip's broad offering of both general purpose and precision operational amplifiers features low quiescent current for the given GBWP.
Instrumentation AmplifiersOur high precision instrumentation amplifiers (INAs) are well suited for applications requiring low operating voltage and current, optimum performance and small form factor in the industrial, medical, consumer and Internet of Things markets.
ComparatorsMicrochip provides a diverse portfolio of comparators including ultra low power, high speed, higher voltage and windowed comparators.
PGAOur Programmable Gain Amplifiers (PGAs) demonstrate high-speed and low offset with the ability to control gain and channel through a SPI port. SGAOptimized for single-supply applications requiring reasonable quiescent current and speed, our Selectable Gain Amplifiers (SGA) can be configured for multiple gains through the Gain Select input pin(s). Automotive ConnectivityAs a leading provider of Media Oriented Systems Transport (MOST®) technology, Microchip develops, markets and supports IP, silicon, network management software and tools for this standard in automotive infotainment networking. Clock and TimingAn extensive Clock and Timing portfolio that delivers a one-stop shop for your complex timing requirements.
EqualizersEnabling a variety of next-generation HD digital video applications, Microchip's video equalizer devices support simultaneous downlink, uplink and power over a single coaxial cable. TransceiversDesigned to transmit bidirectional data and power over conventional coaxial cables, Microchip transceivers are able to transmit at speeds up to 6.25 Gbps and receive at speeds up to 20 Mbps. Digital PotentiometerMicrochip offers low-power, compact digital potentiometers (Digipots) with 6 to 8 bits of resolution, 1 to 4 channel counts, and volatile or non-volatile memory.
Digital-to-Analog ConverterMicrochip’s low cost Digital to Analog converter (DAC) product families feature low power operation down to 175 µA with 8-, 10- and 12-bit resolutions.
Energy MeasurementOur Energy Measurement products enable accurate measurement of energy for electricity metering and power monitoring solutions. Development Tools Microchip provides award-winning development tool solutions to fit every embedded design application. ProgrammersThird-party programmers are available to complement Microchip's own suite of development tools. Electroluminescent (EL) BacklightThese drivers are used to boost input voltages to the high voltages needed to drive electroluminescence lamps which provide backlighting for applications such as keyboards, instrumentation, electronic signage and gaming displays. Automotive LED DriversThese automotive-qualified devices deliver accurate LED current control and rejection of input voltage transients for automotive applications such as LED headlamps, daytime running lights and turn signals. Backlight LED DriversOur line of switching LED drivers converts a high voltage input (up to AC mains) to a lower voltage output (Buck) while providing regulated current to LED strings. Sequential Linear LED DriversThese devices can be used to drive a long string or strings of inexpensive, low-current LEDs directly from the AC mains.
Embedded and Keyboard ControllersAs a leading provider of high-performance, feature-rich mobile embedded controllers, Microchip has years of expertise in serving many of the world's leading PC OEMs. High Speed CommunicationsLarge portfolio of High Speed Communication ICs for different Fiber Optic applications.
The High Speed Communications portfolio also offers an easy to use family of SFF-8472 MSA compliant Fiber Optic Module Management ICs completing the chipset offering. OverviewHigh Voltage Interface products provide level translation and amplification, connecting low voltage control circuits to other high voltage circuits for one to multiple signals. Driver ArraysMicrochip offers HV Source, Sink and Source-Sink Driver Arrays that provide level translation and high voltage drive for multiple signals. Application SpecificMicrochip offers high-voltage interface for application specific use such as liquid-lens driver, complimentary MOSFET level translator and driver, high-side current monitor, fault protection and relay driver and controller.
CANBring communication and connectivity in your embedded design to the next level with Controller Area Network (CAN) bus solutions from Microchip. EthernetAs a reliable, worldwide supplier with in-depth expertise in embedded Ethernet, Microchip offers long-term solutions and support for a complete portfolio of Ethernet products that can quickly enable your Ethernet connectivity needs.
InfraredMicrochip's Infrared products are designed to meet a variety of application needs with distinct advantages that enable the embedded system designer to easily add infrared wireless connectivity. LINLocal Interconnect Network (LIN) has been widely adopted by the automotive industry to support the increasing number of distributed electronic systems in today's vehicles. Serial FlashDesigned for a wide variety of applications in consumer electronics, computing, networking and industrial spaces, Microchip's Serial Flash (25 and 26 Series) devices offer a small form factor, standard pinouts and command sets and cost-competitive pricing. Parallel FlashMulti-Purpose Flash (MPF) and Multi-Purpose Flash Plus (MPF+) make up a family of Parallel Flash memory products that deliver high performance, low-power consumption, superior reliability and small sector size. Power ManagementNo matter which topology or approach you choose, Microchip can support your design with our comprehensive portfolio of Intelligent Power products, which covers the spectrum from discrete analog solutions to sophisticated and flexible power conversion using our digital signal controllers (DSCs).
Charge PumpsEasy-to-implement, inductorless, high-efficiency power conversion solutions for lower-current applications. Power MOSFET DriversMOSFET family using high-speed, low figure of merit (FOM) process technology that offers improved power conversion efficiency in switched mode power supplies. Power MOSFETsMicrochip's Power MOSFETs combine with the Digitally-Enhanced Power Analog devices to drive high-efficiency,and highly-flexible, power conversion solutions. Hybrid PWM ControllersMicrochip's novel Hybrid PWM Controller family, built on the Digitally-Enhanced Power Analog technology, combines a high-speed analog controller with a fully-functional MCU. Inductorless Offline Switching RegulatorsMicrochip's HV Inductorless Switching Regulators are designed to provide offline power for low power applications, with minimal component count, including the ability to eliminate the requirement for an inductor or transformer. Voltage DetectorsLow-Cost Precision Supervisors and Detectors with Industry-Standard Functionality and Pin-Outs.
Safety and SecurityDevices for safety and security applications include ICs for ionization and photoelectric smoke detectors as well as for CO and toxic gas detectors.
Smoke and COIf you are designing smoke or carbon monoxide detectors, Microchip offers low-power solutions that meet your design requirements.
Thermal ManagementMicrochip offers a comprehensive product family of thermal management solutions including ambient temperature, remote temperature and fan control. Temperature SensorsTemperature Sensors are useful in thermometer circuits, temperature compensation applications as well as a wide array of general purpose replacements for older thermistor technology. Brushless DC Fan ControllersMicrochip's brushless DC fan controllers provide temperature proportional fan speed control at low power operation. Closed Loop Fan ControllersMicrochip's closed loop fan controllers are adjustable for reaching target fan speed, which is good for aging fans or blocked air paths. Sensor Conditioning ICsThe MCP9600 is fully integrated thermocouple Electromotive Force (EMF) to degree Celsius converter, with integrated Cold-Junction compensation. Proximity, Keys and SlidersCreate a high-impact user interface at a lower total system cost with easy-to-use turnkey and plug-and-play capacitive or metal-over capacitive touch sensing solutions.
Touch Screen and Touchpad ControllersState-of-the-art Projected Capacitive Touch (PCAP) technology is at the core of our solutions for touch screens and touchpads. 3D Tracking and Gesture SensingMicrochip's patented GestIC® technology unleashes the third dimension for gesture recognition.
HapticsAs designers increasingly look to touch sensing as the primary user interface, haptics provide feedback that enhances the design and usability. Beamformer Source DriversMicrochip's pulsed current waveform generator and push-pull source drivers are designed for medical ultrasound imaging and HIFU beamforming applications.
Complimentary MOSFET ArraysThe TCXXXX portfolio consists of combinations of high-voltage N-channel and P-channel MOSFETs offered in a single package, which produces a device with the power handling capabilities of bipolar transistors and with the high input impedance and positive temperature coefficient inherent in MOS devices. Continuous Wave (CW) TransmittersThis device is a four-channel, low phase noise, continuous wave transmit IC. Wireless ConnectivityMicrochip offers a broad portfolio of wireless solutions which are cost effective and very easy to implement.

The LoRa name and associated logo are registered trademarks of Semtech Corporation or its subsidiaries. Sub-GHzOur Sub-GHz transceivers, transmitters and receivers are ideal for a variety of short-range, low-data-rate and low-power wireless applications. InfraredOur infrared products are designed to meet a variety of application needs with distinct advantages that enable the you to easily add infrared wireless connectivity to your product.
Aerospace & DefenseMicrochip's aerospace and defense has a broad portfolio of microcontrollers, power, analog, digital, memory, RF, mixed signal and interface. Create a rock collection as you learn about the three main types of rock, find out how to tell the different rock types apart, and see how rocks change from one type into another!
The students did not have time to start the brine shrimp investigation, last week, so we did the exercise this week. Brine shrimp are microscopic aquatice crustaceans that produce dormant eggs, known as cycts.
Once the slides were mounted and brought into focus, the students were very excited to observe their brine shrimp. I found that students had a particularly difficult time learning to adjust the diaphragm to allow the proper amount of light to flow through the ruler and also with reading the ruler properly.
As Hurricane Sandy made landfall in New Jersey on Monday, school was cancelled and a State of Emergency was declared in Massachusetts. Bob has worked in the gas leaks detection and consulting industry for over 25 years and is an expert on identifying and characterizing urban natural gas leaks and the corresponding damages to roads, trees, and soil. Bob explained to the class how utility companies spray paint the road’s surface in order to communicate the location of vital water, communication, electric, and gas lines prior to excavation for servicing (see photo at right).
The leak is under an asphalt patch on the sidewalk where a tree was removed due to damage from natural gas.
Soil microbes that normally help to provide water and nutrients to vegetation, as well as to store carbon below-ground, die and give way to microbes that feed off methane (methanotrophs). Trees above natural gas leaks exhibit canopy damage and significant loss of leaves (see photo, below).
Students are now able to identify the smell of natural gas, describe and identify the effects of natural gas leaks on the organisms in their environment, and understand how and why natural gas leaks effect processes at the organism, ecosystem, and climate change level. The exercise asks students to fill vials with mystery solutions (tap water, salt water, sugar water) and substances (rye grass seed, brine shrimp, yeast, sand) and record their observations of what happens inside the vials over time. Murphy set up the materials for the investigation and then circulated around the room in order to help students assemble their materials properly.
This has been an eye-opening experience and makes me feel quite certain that some form of educational reform in this country is imperative. These devices allow you to perform application functions autonomously in hardware instead of software.
The 16-bit family is comprised of several subfamilies ranging from 4 KB to 1024 KB of Flash in 14 to 144 pins, with packages as small as 4 × 4 mm.
From simple USB device connectivity to RTOS-driven graphical user interface applications with advanced audio processing, PIC32 devices can meet your most demanding design requirements.Curiosity Development BoardYour next embedded design idea has a new home. Low power consumption and small form factor make these products ideal for a wide variety of applications in industrial, medical, consumer and automotive markets. These devices meet AEC-Q100 qualification and enhanced Electromagnetic Interference (EMI) Rejection is available on a growing number of device families. Some have integrated temperature sensors, making them ideal for many applications.MCP6V9XThis family of operational amplifiers provides input offset voltage correction for very low offset and offset drift, with a gain bandwidth product of 10 MHz. Physical layer solutions for optical, coaxial and Unshielded Twisted Pair (UTP) to enable infotainment, advanced driver assist systems, backbone, vehicle diagnostics and consumer connectivity applications. Depending on the device, they support data speeds from 270 Mbps up to 6 Gbps for video downlink and from 5 to 20 Mbps uplink for camera control over distances that can reach up to 68 meters. The unique non-volatile memory option allows DAC configuration to be saved at power down and reduces Micro-controller overhead. Some devices offer on-chip active power calculations while others simply offer high-end Analog-to-Digital Converters for high accuracy measurement with firmware available to perform the power calculations on any of our PIC® microcontrollers.
These devices provide a stable reference for data converter applications with low power and high accuracy options. Our MPLAB® X programming platform is compatible with all our microcontrollers, including 8-bit, 16-bit and 32-bit, DSC and periphery products. The Microchip Libraries for Application (MLA) and standalone Embedded Code Source website provide additional resources to assist with your application development. For example, the low-cost, handheld in-circuit programmer from CCS supports the PIC10, PIC12, PIC14, PIC16, PIC18 and PIC24 families of MCUs and dsPIC® DSC families. They minimize LED driver system cost while delivering accurate performance with smooth dimming and no 120 Hz flicker.
They offer high accuracy current regulation and excellent dimming performance, while simplifying designs by reducing the number of external components required. Our highly optimized devices provide a broad range of functions for notebooks, ultrabooks, tablets, convertibles and keyboards. Recognizing how difficult this can be, Microchip has developed solutions that make it easy to design motion-based applications. Channel counts range from a few to 100+, with voltage ratings from 50 to 300, with a mix of control, routing, protection, and package options. HV507The HV507 is a low voltage serial to high voltage parallel converter with 64 push-pull outputs.
Microchip is the market leader in ARCNET devices and has a full spectrum of solutions to meet any customer's price and performance needs. Originally created for automotive applications, the CAN serial bus protocol is a high-speed, reliable communication protocol for applications requiring robust communications at bit rates reaching 1 Mbps.
It is scalable over single or multiple coaxial cables with simultaneous uplink control and power-over-coax to power the remote camera. It enables the OEMs to design cleaner, safer, smarter and more efficient vehicles while addressing design challenges such as lower system cost, lower power consumption and weight reduction. Microchip's broad portfolio of memory devices includes Serial EEPROM, Serial Flash, Parallel Flash, Serial SRAM and NVSRAM.
Our Serial EEPROMs are low-power, non-volatile devices with robust operating ranges, small-size and byte-alterability, making them ideal for data and program storage. Our integrated products help you simplify your board design and build more cost-effective and reliable systems. These devices are well suited for portable and consumer electrics applications due to their extremely low 1 µA operating current and small surface-mount packaging.
Due to excellent internal phase compensation, the LDO output is stable without the need for capacitors. These are low Figure-of-Merit devices, focused on minimizing both on-state resistance (Rds(on)) and gate charge (Qg). This unique combination offers the speed and response of a traditional analog controller, with the flexibility of a digital interface, to control a variety of power supply topologies. These innovative products offer power system designers the options necessary for designing cost effective, efficient, space saving power conversion solutions. Our ionization and photoelectric smoke detector devices provide all the essential features and require few external components for developing ionization- or photoelectric-type smoke detectors. With minimal external components, this circuit will provide all the required features for a photoelectric type smoke detector.
The MCP9600 supports 8 thermocouple types and provides user-programmable registers, adding design flexibility for various temperature sensing applicationsIntegrated Thermocouple EMF - MCP9600The MCP9600 is fully integrated thermocouple Electromotive Force (EMF) to degree Celsius converter, with integrated Cold-Junction compensation. Offering you a compelling platform for all your embedded multi-touch requirements, we specialize in solutions that provide the lowest power as well as on-board detection of surface gestures. Adding gesture control and X-Y-Z tracking to your embedded products will enhance and simplify the user experience.
Characteristic of all MOS structures, these devices are free from thermal runaway and thermally induced secondary breakdown.
A high speed D flip-flop is provided to allow the DIN frequency to be aligned to a high frequency clock. These fully certified surface mount Wi-Fi® modules allow you to quickly and seamlessly add Internet connectivity to your applications. All silicon, modules and software carry the QDID to ensure compatibility of your connected solution.
Microchip offers fully-certified LoRa modems for long-range, low-power wireless connectivity. As mentioned, the students prepared food with which to feed the shrimp last Tuesday (baker’s yeast stained with Congo Red).
The students observed dry brine shrimp cysts several weeks ago and were asked if they thought the cysts were alive. For most of the students, this was the first time they began to actually grasp the concept of microscopic life — organisms small enough to fit into a single droplet of water.
Last week, students began their introduction to microscopy by learning about all of the working components of a compound microscope. The class helped prepare food for the shrimp, today (baker’s yeast stained with Congo Red).
Bob also demonstrated how to detect elevated methane concentrations at natural gas leak sites using two instruments commonly employed in leak discovery; a flame ionization unit and a combustible gas indicator (see photos below). Trees suffer due to the loss of associated soil microbes and the reduction of soil oxygen needed for healthy roots. Trees compromised by gas leaks are also susceptible to colonization by types of fungi that break down cellulose. I gave an opening presentation that built on material that I had introduced during my first week at Curley (introduction). I had to remind them that in order to complete the worksheet they would need this information.

The objective is to reinforce the concept of the organism as an independent form of life that exhibits the seven characteristics of life; food, water, response, reproduction, growth, waste, and gas exchange. These students present a unique challenge in that they have seen all of the curriculum before and are prone to distracting the rest of the class. It is therefore a challenge to feel like all of the fellows are making equal strides in fulfilling the GK12 program’s stated goals of improvement in science communication and education. They are supported by MPLAB® Code Configurator, a free graphical programming environment that reduces development time. This amplifier portfolio is ideally suited to low-power, environmentally sensitive and performance-demanding applications in the industrial, automotive, medical, consumer and Internet of Things markets. Other connectivity products include automotive Ethernet PHYs and switches, Ethernet-to-USB bridges and widely adopted USB consumer device connectivity solutions.OS82150The OS82150 integrates a coaxial cable driver and coaxial receiver, extending the usage of coaxial cabling to enable powerful automotive infotainment networks based on MOST150 technology. They are well-suited for MRXX halogen bulb replacement as well as for signage and architectural, general purpose and decorative lighting applications. The Arrays provide amplified signals, supporting voltages up to 300V with output channel count up to 32. Microchip offers a range of products and development tools to provide a complete and reliable LIN design solution.
Innovative low power designs and extensive testing have ensured industry leading robustness and endurance along with best-in-class quality. Innovative low-power design and extensive testing have ensured industry-leading endurance and best-in-class quality. Our SPI-compatible Serial SRAM devices are available in 64 Kbit, 256 Kbit, 512 Kbit and 1 Mbit options and with clock speeds up to 20 MHz. Its Sleep Mode achieves a typical "key-off" quiescent current of 5 µA and its buck converter is capable of delivering 750 mW of power for powering a companion microcontroller. To help polish off your design, Microchip offers a variety of other devices such as op amps, temperature sensors, current sensors and MOSFETs. They are focused on maximizing power conversion performance, making them ideal for switched-mode power supply applications. Our CO detector ICs incorporate power management, an LED driver, a piezoelectric horn driver and other functions to develop a CO or toxic gas detector. The MCP9600 supports 8 thermocouple types and provides user-programmable registers, adding design flexibility for various temperature sensing applications. Our MGC3XXX low-power, single-chip solutions have no host computing requirements, making it easy to enable 3D control in your design.
Integrated features such as bleed resistors in the ICs further reduce PCB density and overall cost by eliminating an external component. The objectives of the lesson are to observe the feeding patterns of the brine shrimp as well as their movement, general morphology, and characteristics of life. The observations the students made during the investigation today forced them to reevaluate their perceptions from prior weeks regarding dormancy and the size of living organisms. This week, students transitioned into activities that challenged them to use the microscope and tackle concepts such as field of view and focal plane. The students will observe the feeding patterns of the brine shrimp as well as their movement, general morphology, and characteristics of life.
During the lesson, students learned how natural gas leaks release methane (a potent greenhouse gas) into the atmosphere, affect organisms in urban ecosystems (trees, vegetation, soil microorganisms, humans), and limit the storage of carbon in terrestrial systems. As methane is lighter than air, it rises through the soil above the distribution pipe to escape to the atmosphere. As such, photosynthetic capacity for trees is reduced, which further affects a tree’s ability to draw carbon out of the atmosphere and store it in above- and below-ground biomass. Their weekly quiz (administered on Fridays) included material from the lesson and the natural gas leaks tour.
This lesson deals heavily with my area of research, the effects of methane emissions on biogeochemical cycling and urban ecosystems. Students are also asked to practice their observational skills through writing and sketching. It seems especially important to voice and enforce expectations for classroom conduct early on in the school year. The integration of digital functionality, such as decimation filters and a digital down-converter, simplifies system-level design and reduces power usage. MPLAB XC Compiler licenses are also available as Free editions and have the option of a 60-day PRO evaluation trial. Its unified graphical user interface (GUI) helps to integrate software and hardware development tools from Microchip and third-party sources to give you high-performance application development and extensive debugging capabilities. In-circuit debugging offers low cost, minimum additional debug hardware and no expensive sockets or adapters. The linear post-regular provides True DC lighting with no flickering and the configurable to SEPIC technology supports lower LED string voltage.
It can also be used in any application requiring multiple output, high voltage, low current sourcing and sinking capabilities.
At that time, students were also asked if they thought that there might be any living organisms in a single drop of water. They are now hatched and in the larval stage, ready to be viewed using the compound microscopes by the students. Students were asked to complete a number of activities in groups (2 to 3 students per microscope) which required them to practice using the course and fine focus, adjusting the diaphragm, using the three objective lenses (4x, 10x, 40x), calculating total magnification, and measuring the diameter of the field of view.
Methane is a dry gas which means that it forces out moisture and oxygen from the soil as it flows upwards.
The class was able to observe a number of these fungi growing on a tree just blocks from the Curley School (see bottom-most photo). We have 7th graders for the first half of the year and 8th graders for the second half of the year. The HV Amplifier series largely finds application in capacitive drive applications, such as drivers for MEMS analog mirrors for laser beam steering as used in networking, LIDAR, imaging, and other applications. I came around to each group and placed a drop of solution containing the red-stained yeast on their slides such that the yeast solution could slowly bleed into the droplet of water containing the brine shrimp. The second activity asked students to explore the concept of focal planes by making a wet mount of three layers of different colored ribbon. Once a tree has been colonized by such fungi, not much may be done to save the tree from further decline and eventual death. Everyone seemed very engaged and took ownership over their contribution to the decision making process. It was definitely a challenge to complete the set-up for the investigation in one 60 minute period! Working with brine shrimp introduces the concepts of different life cycle stages (with unique morphologies), dormancy, and microscopic life.
They were asked to prepare a clean glass slide upon which I placed a single drop of water containing one to two brine shrimp. The students were very engaged in making observations of the rather frantic feeding patterns of their brine shrimp (the shrimp had not eaten for a few days and were very hungry). I think that this concept is a difficult one to grasp but the wet mount slide certainly helped make it more tangible to the students.
Physiological stress induced by below-ground natural gas leaks can also cause epicormic budding along the base and trunk of trees. I tried to facilitate discussion during the introductory presentation to engage the students, as well as to discern their base level understanding of old and new concepts.
Arguments were not as in-depth as I would have hoped, but overall the students were able to articulate the key concepts of interest associated with urban organisms and the carbon cycle. The students were then responsible for placing the slide on the microscope stage, adjusting the diaphragm (the shrimp are translucent and too much light can wash out the image), and bringing the shrimp into focus. The students recorded their observations in their science notebooks and made sketches of the brine shrimp. Once they began to understand the connection between moving the stage up and down (using the course or fine focus) and being able to focus on the first, second, or third layer of ribbon, the idea that thicker samples have multiple planes of focus became much more approachable. Epicormic budding is a term that describes a shoot or a branch that sprouts from under the bark of a tree.
Most of the students were engaged and excited to ask questions and offer up answers and opinions.
Many of the students had a difficult time with this task as the brine shrimp investigation represents the first time they have attempted to view living, moving specimens with their microscopes. Notably, as the brine shrimp appear translucent, the red-stained yeast is easy to spot as it accumulates in the gut of the shrimp. When these buds originate at the base or the trunk of the tree, rather than the crown, this indicates that the tree is making a last ditch effort to maintain photosynthetic viability and survive. I tried to emphasize the relevance of the gas leak problem in their daily lives and their role as organisms in an urban ecosystem. To limit the shrimps’ movement, students blotted at the edges of their water droplet with paper towel to decrease the volume of water in the droplet and thus limit the range of movement for the shrimp.
Students were also able to observe example of this sort of epicormic budding on a number of trees associated with gas leaks. The students seemed to grasp the importance of the role of science in decision making and the difficulty of arriving at unanimous solutions for environmental problems in our community.

Changing my name on an expired passport
Meditating on the word
What is the secret word to make walda laugh word

Comments to «Change life cycle»

  1. 1989
    Enlightenment, which as I'm studying, entails the and its situation is analyzed and therapy.
  2. zarina
    The physique and thoughts, so that a practitioner can recommend for.
  3. Fellin
    Attainable within the sections explaining what we mean and.
  4. RAZiNLi_QIZ
    Between two primary meditation workouts within the MMFT group daydreaming?while I take my daily bus experience.
  5. Lizok
    Tree lined walkways, ponds, labyrinth, swimming.