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Solar/Wind Power

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Solar Bag. You'll get "carried away" experimenting with the Solar Energy Bag!

Solar Bag

Use the Solar Bag to demonstrate concepts of energy, thermodynamics, density, and buoyancy! Take the 50-foot long, 36 inch diameter tube outdoors and fill it with air. Close the end, tether with string, and allow the sun's energy to heat the air in the bag. In a few minutes, the bag begins to float! Challenge students to explain their observations using kinetic theory and gas laws. WHAT DOES IT TEACH? Includes: 50'x36" bag, kite string, and detailed instructions. Recommend but not included: Meterstick (P1-1070), Infrared Thermometer (68-6505 or 68-6500), scissors, and 2-inch roll cellophane packing tape Products being sold are not toys. Build-it-Yourself Solar LED Flashlight Kit. DIY Bottle Thermometer . Adventures in Learning . PBS Parents. Wind Powered Music Box. Wind_Tubes.pdf. Windmill_Design_0.pdf. DIY Solar USB Charger - Altoids. I've been reading a bunch of blogs this fine Earth Day morning and have noticed that most of them are posting little write ups about green solar powered USB gadget chargers.

DIY Solar USB Charger - Altoids

They're all quite nice, but also quite expensive. I don't think I've seen any for less than $60, and I've not seen one that really suits my style. Instructables has quite a few guides on how to make Solar USB Chargers, including the very well done guide on how to combine a Lady Ada Minty Boost circuit with a solar + lithium ion battery. Great, but a bit expensive to make and not a very simple project for the weekend DIY person.

Well luckily for us I know how to make one for under $20 that is better in nearly every way and also completely fits into an Altoids Tin. *** Update: I've since retired this kit. $4 Solar Battery Charger.

You want the black bar pointing in the direction you want power to flow. – crolin

Cooking with the Sun - Creating a Solar Oven. Summary Student groups are given a set of materials: cardboard, insulating materials, aluminum foil and Plexiglas, and challenged to build solar ovens.

Cooking with the Sun - Creating a Solar Oven

The ovens must collect and store as much of the sun's energy as possible. Students experiment with heat transfer through conduction by how well the oven is insulated and radiation by how well it absorbs solar radiation. They test the effectiveness of their designs qualitatively by baking some food and quantitatively by taking periodic temperature measurements and plotting temperature vs. time graphs. To conclude, students think like engineers and analyze the solar oven's strengths and weaknesses compared to conventional ovens. Engineering Connection The design, construction and testing of solar ovens is an engineering project that combines materials science with mechanical engineering through harnessing heat transfer mechanisms.

Educational Standards Click on the standard groupings to explore this hierarchy as it applies to this document. MSI - Online Activities - Cook Food Using the Sun. Step 1 of 8: Here's the Materials You'll Need: Empty pizza boxAluminum foilPlastic wrapTapePen or pencilScissors or utility knifeRulerPaper plateChocolate or marshmallows Graham crackersThermometer (optional) Safety note: The solar oven can get very hot.

MSI - Online Activities - Cook Food Using the Sun

Use caution when handling. Step 2 of 8: Draw a square around the lid of the pizza box about 2 inches away from the sides. Step 3 of 8: Fold back the square flap. KidWind Basic Turbine Building Parts. Solar Town Kit. MSI - Online Activities - Build a Wind Turbine. Step 1 of 7: Here's the Materials You'll Need: Three PVC pipes, one about 30 cm long and the others at least 15 cm longThree PVC T-jointsOne PVC elbow jointMotorWire (about two feet long)Wire cuttersHub (available from Kid Wind Project)Wood dowelsMultimeterAlligator clipsScissorsTapeHair dryer or fanMaterials for blades, such as balsa wood, aluminum foil, construction paper, popsicle sticks, etc.

MSI - Online Activities - Build a Wind Turbine

Step 2 of 7: Insert a 15-cm PVC pipe into the middle hole of a PVC T-joint. Repeat with another 15-cm PVC pipe and T-joint. Step 3 of 7: Insert the remaining PVC pipe into the T-joint hole that is facing up, so that the pipe stands upright. Step 4 of 7: Attach two wires to the motor. Attach the plastic, round piece called the hub to the straight, metal piece on the outside of the motor. Step 5 of 7: Connect the wires to the multimeter using the alligator clips. Step 6 of 7: Place a few small, wooden dowels into the holes of the hub. KidWind Basic Wind Experiment Kit.