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Why Are Bubbles So Colorful?
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In this activity, learners explore why they can see colors in bubbles and why they change.
Bubble Tray
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In this activity, learners use simple materials to create giant bubbles.
Do the Mystery Samples Contain Life?
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In this activity (on pages 13-16 of the PDF) learners investigate three mystery samples to see which one contains life. The three samples are sand, sand and yeast, and sand and antacid.
Cartesian Diver
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In this demonstration, learners observe the effects of density and pressure. A "diver" constructed out of a piece of straw and Blu-Tack will bob inside a bottle filled with water.