Search Results

In this simple demonstration, learners investigate the properties of air pressure. Learners place an index card on top of a glass full of water, then invert the glass.

In this activity, learners make their own "tornado" using two soda bottles and water.

In this quick activity, learners drink Avogadro's number worth of molecules - 6.02x10^23 molecules!

In this simple activity, learners see the production of a gas, which visibly fills up a balloon placed over the neck of a bottle.

In this quick activity, learners observe how the added sugar in a can of soda affects its density and thus, its ability to float in water.

In this experiment, learners examine how pressure affects water flow. In small groups, learners work with water and a soda bottle, and then relate their findings to pressure in the deep ocean.

In this activity, learners work in groups to build simple solar stills filled with salt water. After the stills are complete, learners observe what happens when they place the stills in the sun.

Learners investigate the properties of the liquids in two bottles. One contains layers of oil and water, and one contains oil, water, and soap.

Learners place cut flowers in colored water and observe how the flowers change. The flowers absorb the water through the stem and leaves.

Learners see convection currents in action in this highly visual demonstration. Sealed bags of colored hot or cold water are immersed in tanks of water.

In this activity, learners create a biosphere in a baggie.

This activity shows you how to make amazing crystal spikes using Epsom salt and the sun.

In this activity, learners discuss the different salinities of oceans, rivers and estuaries.

In this activity, learners discover the difficulty of ocean exploration by human beings as they investigate water pressure.

This activity explores the basic workings of a siphon, which is the core technology that makes toilets work.

What causes frost to form on the outside of a cold container? In this activity, learners discover that liquid water can change states and freeze to become ice.

This activity has learners observe water and compare it to other liquids.

In this activity, learners observe the effect of transpiration as water is moved from the ground to the atmosphere.

In this activity, learners build water-propelled engines from soft drink cans.

In this activity, learners conduct a series of hands-on experiments that demonstrate how the working of plants' veins, known as capillary action, enables water to travel throughout the length of a pla