4th Grade Science Review

Front

What is the main source of energy for plants?

Back

The Sun

Front

What is harmful for humans?

Back

Throwing trash into the stream

Front

What part of a plant makes seeds and what other part of a plant makes food?

Back

Flower and Leaves

Front

Why did the ball go further on the wooden floor than on the carpet?

Back

It had less friction

Front

What is a producer?

Back

A producer is an organism that makes its own food, like a tree.

Front

What do plants need to grow?

Back

Plants need sunlight, water, air, and nutrients from the soil.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which plants use sunlight to make food from carbon dioxide and water.

Front

What is the role of roots in a plant?

Back

Roots anchor the plant and absorb water and nutrients from the soil.

Front

What is an ecosystem?

Back

An ecosystem is a community of living organisms and their environment interacting as a system.

Front

What is the water cycle?

Back

The water cycle is the continuous movement of water on, above, and below the surface of the Earth.