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In this activity, learners make their own heat waves in an aquarium.

Learners are challenged to discover the relative densities of colored liquids to create a rainbow pattern in a test tube.

In this activity, learners conduct three experiments to examine temperature, the different stages of the water cycle, and how convection creates wind.

In this activity, learners observe color mixing and absorbency using colored tissue paper and spray bottles.

Investigate the interaction of liquids of different densities and experiment with wave patterns with this hands-on activity.

With a coffee filter, a black marker, and a cup of water, discover the secret colors hidden in black ink.

In this activity, learners investigate the effect of heat on a reaction.

In this activity, learners create a water prism to break light into the seven colors of the rainbow.

In this activity, learners use simple materials to create giant bubbles.

In this activity, learners use a flashlight, a glass of water, and some milk to examine why the sky is blue and sunsets are red.

In this optics activity, learners explore why the sky is blue and the sunset is red, using a simple setup comprising a transparent plastic box, water, and powdered milk.