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In this activity (p.7-8 of PDF), learners examine fossil formation.

In this activity, learners discover the relationship between temperature and pressure in the lower atmospheres of Jupiter and Earth.

Learners observe and discuss a simple model of a wet scrubber, a device for cleaning industrial air pollution.

Many people get water from a source deep underground, called groundwater.

In this activity, learners create volcanoes like those they have examined on Earth and Mars through images taken by spacecraft.

Where rainwater goes after the rain stops? And why there are rivers and lakes in some parts of the land but not in others?

In this activity, learners explore the magnetic field of a bar magnet as an introduction to understanding Earth's magnetic field. First, learners explore and play with magnets and compasses.

In this outdoor activity, learners explore UV rays from the Sun and ways to protect against these potentially harmful rays.

Lakes, streams and other freshwater bodies are a habitat for lots of living things, big and small.

How do scientists measure how clear or murky water in a lake is? How does water clarity (clearness) affect what lives in the lake?

In this activity, learners simulate Otto von Guericke's famous Magdeburg Hemispheres experiment.