I love science kits—especially homemade kits! Save a shoebox or coffee cans to store your materials. One favorite is Water Wonders. Make Square Bubbles (Soap Bubbles—Science and Ideas), Cartesian Divers, Soda Bottle Rocket, Tornado in a Bottle (or a Tornado tube), and Elephant’s toothpaste. Start saving soda bottles! Use 3 mL pipettes and 1/4 in hex nuts for the Cartesian divers. You can buy most of the materials for less than $25. I bet you already have some of the materials. Dig up a shoebox and a few tiny, travel bottles. What a gift!
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