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In this quick activity, learners break the tension that happens when water develops a "skin." Learners use water, pepper and some soap to discover the wonders of surface tension—the force that attract

In this activity, learners construct drums out of everyday containers (like bowls or food containers) and shrink wrap. Learners use a hair dryer to affix and tighten the shrink wrap to the container.

In this activity, learners test what happens when they put baking power on different frozen liquids.

In this chemistry activity, learners use spaghetti to explore density and chemical reactions.

Learners observe a bottle containing water and oil. They are invited to pick up the bottle and mix the contents together.

In this activity (7th activity on the page), learners use their sense of hearing to find a "sound match." Learners shake containers filled with items like dry seeds, sand, beans, etc.

Learners mix liquid water with solid cornstarch. They investigate the slime produced, which has properties of both a solid and a liquid.

In this activity, learners create a necklace of wheat germ DNA. Learners add alcohol to wheat germ so that the DNA clumps together.

This math challenge, played with two players or a whole group, engages your problem solving skills.

In this activity, learners discover that as the salinity of water increases, the density increases as well. Learners prove this by attempting to float fresh eggs in saltwater and freshwater.

This is a highly visual demonstration that illustrates both the effects of density and chemical reactions.

Many germs spread by our hands, and often times, people don't wash their hands well enough to get rid of germs.

This activity teaches combustion as the interaction of a fuel source and oxygen.