By Janice VanCleave
How do rocks switch form? Why does Venus rotate ''backwards''? How do tigers speak with their tails? Do larger ears listen larger? become aware of the solutions to those and lots of different bizarre and wild mysteries in astronomy, biology, chemistry, earth technological know-how, and physics. Janice VanCleave's 204 Sticky, Gloppy, Wacky, and lovely Experiments supplies hours and hours of hands-on, inexpensive clinical enjoyable. try out those secure, easy-to-do experiments at domestic or within the school room: build a lunar calendar to ascertain the stages of the moon, notice the feeding of ants to determine how they convey, and construct a version of Galileo's thermoscope to degree how assorted fabrics swap temperature. With such a lot of striking tasks to select from, you should have a blast studying concerning the global round you.
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Extra info for Janice VanCleave's 204 Sticky, Gloppy, Wacky and Wonderful Experiments
Sample text
5. Stand the spool on end and thread the free end of the string through the hole in one of the poster board circles. Continue to add spools and circles to the string until all are used. Then, tape the end of the string to the top spool. 6. Holding the bottom spool on a table, push the top spool about 2 inches (5 cm) to one side. 7. Push the spool in different directions. 68. Squeezed Purpose To demonstrate how food is squeezed from the stomach into the small intestine. Materials tube of toothpaste 3-ounce (90-mL) paper cup Procedure 1.
Materials setup from Experiment 39, “Pairs” Procedure 1. Keeping the dowel in the sling, remove about half of the clay from one end of the dowel. 2. Move the dowel back and forth in the sling until it balances. Notice the location of the sling in reference to each clay ball. 3. Gently push one of the balls to start the dowel turning in a counterclockwise direction. Observe the setup from above to determine the balancing point of the dowel and the size of the curved path of each clay ball. Results The dowel turns about the sling, which is located closer to the larger clay ball.
Move the left-eye bean again, nearer the right-eye bean. 9. Press the fish’s body and head flat as shown. 10. Observe the final location of the beans and the shape of the fish’s body. Results The bean on the left side of the fish’s head is moved around the head in stages until both beans are located on one side—the right side—of the head. The fish’s body gradually changes from a round form to a flat form. Why? The beans represent the eyes of a flatfish, such as a flounder. All young flatfish have the general shape of other fish: a rounded body with eyes on either side of their head.