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Chemistry messes: Difference between revisions
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=== '''What You'll Need''': === | === '''What You'll Need''': === | ||
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HIGH! Foam will spill everywhere, so do this outside or use a tarp for easy cleanup. The foam is safe to touch but can be messy.{{blc| Chemistry messes }}{{ct| Activity}} | HIGH! Foam will spill everywhere, so do this outside or use a tarp for easy cleanup. The foam is safe to touch but can be messy.{{blc| Chemistry messes }}{{ct| Activity}} | ||
=== 1. '''Elephant Toothpaste Explosion''' === | |||
* '''What it Teaches''': Exothermic reactions, catalysts, and decomposition of hydrogen peroxide. | |||
* '''What You'll Need''': | |||
** Hydrogen peroxide (6% or higher) | |||
** Dish soap | |||
** Food coloring | |||
** Yeast mixed with warm water (as a catalyst) | |||
* '''What to Do''': Mix hydrogen peroxide, dish soap, and food coloring in a bottle. Pour the yeast solution in and stand back as colorful foam shoots out like a volcanic eruption! | |||
* '''Mess Level''': High (do it outside or on a tarp). | |||
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=== 2. '''DIY Slime Chemistry''' === | |||
* '''What it Teaches''': Polymers and chemical bonding. | |||
* '''What You'll Need''': | |||
** White glue | |||
** Borax (or contact lens solution with boric acid) | |||
** Water | |||
** Food coloring and glitter for flair | |||
* '''What to Do''': Mix glue, water, and food coloring. Gradually add the borax solution and knead until the slime forms. Encourage students to experiment with consistency. | |||
* '''Mess Level''': Medium (sticky but manageable with table covers). | |||
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=== 3. '''Baking Soda and Vinegar Rockets''' === | === 3. '''Baking Soda and Vinegar Rockets''' === | ||
