Grade 2 Science Practice Test: Matter, Plants and Landforms

A solid keeps its own shape. A wooden block stays the same shape, but milk, juice and water take the shape of their container.

Melting ice is a change that can be undone. When water gets cold enough, it freezes into ice again.

A cooked egg can never become a raw egg again. Frozen water can melt, melted butter can harden in the fridge, and a pipe cleaner can be bent back.

Plastic does not let water through, so it keeps you dry. Paper, cotton cloth and cardboard soak up water.

When bees visit flowers for food, pollen sticks to them and they carry it to the next flower. This helps the plant make seeds.

Some seeds have tiny hooks that stick to fur. The animal carries the seeds and they fall off somewhere new. Seeds cannot walk, flap or swim on their own.

The only difference between the two plants was water, and only the watered plant grew well. So the test shows that plants need water.

An island is land with water on every side. A mountain is very high land, a valley is low land between hills, and a plain is wide, flat land.

Moving water wears rock away a tiny bit at a time, so a canyon takes a very long time to form. Volcanoes, earthquakes and landslides change land fast.

Plant roots hold the soil in place, so planting grass and bushes slows erosion. Pulling up plants or adding water would wash away more soil.