Grade 2 Science: Air and Water

Free Grade 2 Science unit on Air and Water: 10 lessons in order, starting with What is air?. Includes practice questions and answer keys.

10 lessons in this unit

Learn that air is a mixture of gases all around us that we cannot see but can feel, and that living things need air.

Learn that air takes up space through simple tests such as inflating balloons and pushing an upside-down cup into water.

Learn that moving air can push objects, make them move and do useful work, as in sails, kites and windmills.

Learn what wind is, how to tell its direction and strength, and how to observe it safely with simple tools.

Learn what water is, its three forms (ice, liquid, steam), where it is found and why living things need it.

Explore properties of water: it flows, has no shape of its own, dissolves some things, soaks into some materials and floats or sinks objects.

Learn the many everyday uses of water: drinking, cooking, washing, farming, transport and making things.

Learn where water comes from: rain, rivers, lakes, wells, springs and the sea, and how it reaches our homes.

Learn what makes water clean or dirty, why drinking clean water matters and simple safe ways clean water is made.

Learn why saving water matters and the simple ways children and families can save water every day.