As a parent and teacher of home-schooled children it's important to know how vital science is in our everyday lives. It's also just as important to be able to relay that to your children as well. One of the best ways for children to learn about all types of science is by making it fun. Involving children in the scientific experiment process is a great way for them to get a "hands on" education about all types of science from biology to astronomy to physics. If you are looking for great ways to teach your children about the wonders of physics, try any of the following experiments.
1. Build a catapult! Every child likes to throw things and building a catapult is an easy thing to do. You will need a block of wood, plastic spoon, a spring clothespin, and some very strong tape and/or glue. Start by taping or gluing the clothespin to the block of wood. Tape the plastic spoon onto the clothespin, so the round part of the spoon is facing up. When you press down on the base of the spoon and let go, you'll notice you've created your own catapult. Use marshmallows as "ammunition", and test how far a marshmallow will travel depending on how hard you push the catapult down before releasing it and sending the marshmallow across the room. This concept illustrates stored energy, gravity, and the transfer of energy.
2. Make a tin-can telephone! This experiment works best with tin cans or paper cups. To learn more about sound waves, poke a hole into the bottom of the two empty cans or cups, and thread the ends of the wire or twine through the holes in the cans, knotting the end of the wire or twine to secure the string to the cups. Have your children take a cup and walk as far away as possible until the twine becomes taut. Then take turns speaking to each other, putting the cup up to your ear to listen, and talking into it to communicate with the other person.
3. Make an uphill siphon! You will need two glasses, two thick books, some plastic or rubber tubing, and clothes pins. Fill one of the glasses almost to the top and place it on the stacked books. Put the other glass on the table next to the books on the ground. Fill the tubing with water, and pinch the ends so the water doesn't run out. (You can use clothespins to do that as well). Place one end of the tubing underwater in the full glass and let go of that end of the tubing. Bend the tubing and put the other end in the glass that is empty. Let go of that end of tubing and watch the water flow uphill!
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