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In this activity, learners investigate the different salinity levels of oceans, rivers and estuaries.

In this activity, learners test to see if carbon dioxide is present in the air we breathe in and out by using a detector made from red cabbage.

This activity has learners interacting with live crayfish, but could be adapted for a variety of similar hardy and interesting organisms.

This hands-on astronomy activity allows you to create a “cutaway” telescope to clearly show how reflector and refractor telescopes work.

In this activity, learners interact with a 3-D model of a watershed to better understand the interconnectedness of terrestrial and aquatic environments.

When it rains, water can collect on top of and seep into the ground. Water can also run downhill, carrying soil and pollution with it.