Dope the semiconductor to create a diode. Watch the electrons change position and energy.
Dope the semiconductor to create a diode. Watch the electrons change position and energy.
This demonstration is designed to show how the inputs and outputs of energy or mass in a system balance. Students create a reservoir model using a hose, a bucket, a tub with a drain and overflow triangle, a ruler, and water, to understand the inputs and outputs of a local watershed or reservoir. A worksheet accompanies the activity. The resource is supported by teacher background information, assessments, and a scoring rubric. This is Activity 1 of the learning module, Global Balance, part of the lesson series, Potential Consequences of Climate Variability and Change.
In this activity, students create a reservoir model using hoses, a bucket, a flat pan, and water, to understand the inputs and outputs of a local watershed or reservoir. The resource is supported by teacher background information, assessment suggestions, and a scoring rubric. This is Activity 2 of the learning module, Global Balance, part of the lesson series, The Potential Consequences of Climate Variability and Change.
In this activity, students investigate the interacting parts of the Earth system by observing changes in evaporation rate in four small aquariums with different initial conditions. The demonstration requires 4 small aquariums, soil, plants, water, graduated cylinder, scale, plastic wrap, and colored pencils. A student data sheet is included. The resource is supported by teacher background information, assessment suggestions, and a scoring rubric. This is Activity 3 in the learning module, Global Balance, part of the lesson series, The Potential Consequences of Climate Variability and Change.
This module is part of the course "Intro to Mechatronics" at Lawrence Technological University and was developed through seed funding from theCAAT. This module consists of a PowerPoint presentation and accelerometer LabVIEW lab. Discussed in the Power Point are automotive sensors, actuators, and their use in powertrain (energy use, drivability and performance), body (occupant needs), and chassis (vehicle handling and safety). Some of the types of these sensors are rotational (crank or cam position), pressure (EVAP system or MAP), exhaust gas (oxygen sensor), and actuators (air bag inflators, relays, and injectors). Also included is a section on DC and AC motors operation and their automotive applications (traction motor, window motor, and seat motor). The lab will introduce students to developing data acquisition for sensors using National Instruments LabVIEW software. For instructors who would like solutions to the lab, pleasecontact theCAAT.
A classroom auction reveals reservation prices and a demand curve for an introductory economics course.
This activity is an investigation of free fall and projectile motion through a track and field situation.
Why do the lights turn on in a room as soon as you flip a switch? Flip the switch and electrons slowly creep along a wire. The light turns on when the signal reaches it.
Why do the lights turn on in a room as soon as you flip a switch? Flip the switch and electrons slowly creep along a wire. The light turns on when the signal reaches it.
An interactive applet and associated web page that demonstrate the concept of similar polygons. Applets show that polygons are similar if the are the same shape and possibly rotated, or reflected. In each case the user can drag one polygons and see how another polygons changes to remain similar to it. The web page describes all this and has links to other related pages. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
This activity describes a simple clear demonstration of electric generators (Faraday's Law) and electric motors (Lorentz Force). This demonstration can be used as an interactive lecture demonstration.
Is it a tumor? Magnetic Resonance Imaging (MRI) can tell. Your head is full of tiny radio transmitters (the nuclear spins of the hydrogen nuclei of your water molecules). In an MRI unit, these little radios can be made to broadcast their positions, giving a detailed picture of the inside of your head.
Build coin expressions, then exchange them for variable expressions. Simplify and evaluate expressions until you are ready to test your understanding of equivalent expressions in the game!
This activity is a classroom experiment where students participate or observe that different densities of liquids will yield different results in a sink-or-float activity.
In this hands-on activity, students learn about the different realms of the Universe and explore their sizes and relative scales. They will be guided through a process that uncovers the immense sizes of the Sun, Solar System, Solar Neighborhood, Milky Way, Local Group, Supercluster, and the observable Universe. The full version of this activity involves students doing simple math computations, however it can also be done without the math. There are some inexpensive materials involved, as well as a powerpoint presentation. It is intended for grades 8-12, but can be adapted down for lower grade levels.
Use a Slinky to show:P and S waves, Wave reflection, and Standing waves in interactive lecture demonstration.
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Algebra students need practice determining equations of lines given a pair of points, or the line parallel or perpendicular to a given line through a given point. This Demonstration, along with guiding worksheets or a teacher presentation, gives students a chance to see the relationships between these lines and points.
An interactive applet and associated web page that demonstrate the slope (m) of a line. The applet has two points that define a line. As the user drags either point it continuously recalculates the slope. The rise and run are drawn to show the two elements used in the calculation. The grid, axis pointers and coordinates can be turned on and off. The slope calculation can be turned off to permit class exercises and then turned back on the verify the answers. The applet can be printed as it appears on the screen to make handouts. The web page has a full description of the concept of slope, a worked example and has links to other pages relating to coordinate geometry. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
Soil Carbon STEM Kit. The Natural Sciences Education & Outreach Center collaborates with CSU faculty, National Parks and citizen science programs to translate their current scientific research into unique STEM experiences for students in the form of Educational Kits that can be checked out. Each kit contains just about all of the materials needed (minus common things like water and paper towels) to explore some really interesting scientific research topics.The kits are available for teachers and informal educators in Colorado to check out for a duration of a week by submitting either a local pickup form or a delivery form available at the linked website. https://www.youtube.com/watch?v=AVNHtSSSa8c This kit is provided free for educational use. This kit is available in Spanish also at the link provided. .