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

In this activity, learners discover that they can create a lens from a water drop. Learners test their lens by looking at words or pictures.

In this simulation activity, learners observe what can happen when ocean waves churn up water and oil from an oil spill.

In this activity about light, learners explore how water can refract light and change the way they see things.

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

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

In this sunny day experiment, learners measure and compare how quickly light and dark colored materials absorb heat.

In this activity, learners create music from a series of bottles filed with water. Learners discover that the sound produced by each bottle depends on the amount of water in the bottle.

“Exploring the Solar System: Ice Orbs” is a hands-on activity in which visitors investigate a frozen orb, trying to learn about objects hidden inside.

In this activity about light and refraction, learners make a lens and magnifying glass by filling a bowl with water.

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

In this activity, learners will experiment with water- and air-filled balloons as a way of dampening sound before it reaches their ears.

In this activity on page 3 of the PDF, learners create a collage by using vinegar to transfer color pictures from a newspaper onto a piece of white paper.

In this optics activity, learners explore color by examining color dots through colored water and the light of a flashlight.

In this activity on page 9 of the PDF, learners make their own paint using chalk as a pigment and glue and water as binders. This activity introduces learners to special mixtures called suspensions.

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

In this activity, you'll use a straw, a water bottle and a paper tube to make an instrument that's very much like a saxophone.

In this activity, learners create a xylophone by filling glasses with different amounts of water and tapping them with a metal spoon.

In this optics activity, learners examine how a transparent material such as glass or water can actually reflect light better than any mirror.

This lesson (on pages 15-24 of PDF) explores how sound is caused by vibrating objects. It explains that we hear by feeling vibrations passing through the air.