The Oxygen-Carbon Dioxide Cycle

One element that is very important to nearly all living things is oxygen. Humans and other animals need oxygen to stay alive. Every time you take a breath, you are filling your lungs with oxygen.

If much of the oxygen in the air disappeared, animals would not be able to survive. But animals are breathing in oxygen every day. Why doesn't the air ever run out of oxygen?

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.

Sixth 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.

Sixth 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.

Sixth Grade
Worksheets