By Aviva Ebner
Environmental technology Experiments
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Additional resources for Environmental Science Experiments (Experiments for Future Scientists)
Ruler . 2 wooden craft sticks . aluminum foil, enough to cover the craft sticks . 9-volt battery . electrical buzzer Safety Precautions Please review and follow the safety guidelines at the beginning of this volume. What You Do 1. 2. 3. 4. Fill a pitcher with water. Add the salt to the water. Stir the water until the salt dissolves. Pour the salt water into the large bowl, enough to fill it with about 2 in. (5 cm) of water (Figure 1). © Infobase Publishing Published by Infobase Publishing All electronic storage, reproduction, or transmittal is copyright protected by the publisher.
How do you know your answer to item 1 is correct? 3. What else could you do to test the water in the glass to see if it is fresh water? 4. Why do people use solar stills with salt water? Our Findings Please refer to the Our Findings appendix at the back of this volume. Further Reading DeGunther, R. Solar Power Your Home for Dummies. Hoboken, NJ: For Dummies, 2007. Details the findings of Francis Galton, Darwin’s half cousin, who is considered the father of biometry. Detailed howto-book on selecting, building, and installing solar projects for the home.
In each of the four bags, place the following: a. one-quarter of the slice of bread b. 1/4/10, 2/24/10 c. 1 tablespoon of coffee grounds d. one-quarter of the banana peel e. one-quarter of the slice of cheese 4. Close each bag securely with a tie (Figure 2). Bag tie Bag with trash Figure 2 FIGURE 2 5. Dig a large hole in an area of dirt where you have permission to do so. It must be large enough to place all four bags inside, side by side. EBNER Environmental Figure 4-2 © Infobase Publishing Published by Infobase Publishing All electronic storage, reproduction, or transmittal is copyright protected by the publisher.
Environmental Science Experiments (Experiments for Future Scientists) by Aviva Ebner