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

In this activity, learners are challenged to calculate their own weight on various planets using a scale and calculator. Older learners may be challenged to do so without using calculators.

This fun and simple hands-on astronomy activity lets learners experiment with marbles and weights to discover some basics about gravity and black holes.

In this activity (on page 14 of PDF), learners use a pan full of flour and some rocks to create a moonscape.

This fun and simple hands-on astronomy activity lets learners experiment with a bucket, stretchy fabric, marbles, and weights to discover some basics about gravity.

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.

This fun and simple hands-on astronomy activity lets learners imagine what would happen if our Sun were replaced with a black hole.