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Learners discover the bubble power of living cells in this multi-hour experiment with baker's yeast. Learners make a living yeast/water solution in a bottle, and add table sugar to feed the yeast.

In this activity, learners explore how acids can dissolve eggshells leaving behind a membrane-covered bouncy egg.

In this biology activity (page 3 of the PDF), learners will explore how plants turn sunlight into food through a process called photosynthesis.

Make your own mummy! Using a combination of salts, transform an apple into a mummy and discover how the Ancient Egyptians used drying as one step in the mummification process.

In this activity/demo about piezoelectricity, learners discover how some crystals produce electricity when squeezed.

Learners will build and experiment with their own windmills made from simple household materials.

Heat makes some materials expand, and it makes others shrink.

In this activity, learners build models of comets, using edible materials, to learn about comets' structure.