The Oxygen - Carbon Dioxide Cycle

Most living things on Earth must have oxygen to live. Oxygen is part of the air we breathe. About one-fifth of our air is oxygen. But where does oxygen come from? It might surprise you to learn that some living things make oxygen.

Plants and some other living things make their own food. This process is called photosynthesis. Plants collect energy from the sun. They use it to make their own food, a kind of simple sugar. To do this, plants need carbon dioxide. They take in carbon dioxide from the air. When they make food, they give off oxygen. To them, oxygen is a waste product. To us, oxygen is life!

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Fifth Grade
Worksheets

The Oxygen - Carbon Dioxide Cycle

Print The Oxygen - Carbon Dioxide Cycle reading comprehension.

Print a read and math workbook with The Oxygen - Carbon Dioxide Cycle reading comprehension.

You need to use this workbook in your classroom. Great mix of reading and math.

Fifth GradeWorksheets

The Oxygen - Carbon Dioxide Cycle

Print The Oxygen - Carbon Dioxide Cycle reading comprehension.

Print a read and math workbook with The Oxygen - Carbon Dioxide Cycle reading comprehension.

You need to use this workbook in your classroom. Great mix of reading and math.

Fifth Grade
Worksheets