Gives examples of chemical interactions occurring in the human body, in the world around us, in foods, and in products we use.

Get the big-picture overview of the importance of Earth's atmosphere and the reactions that happen within it.

Students are introduced to the concept of energy cycles by learning about the carbon cycle. They will learn how carbon atoms travel through the geological (ancient) carbon cycle and the biological/physical carbon cycle. Students will...

Understand the role that the carbon cycle plays in the ecosystem.

A basic explanation of how chloroplasts and mitochondrion produce energy within the cell. Various terms presented are explained in a clear and easily understandable manner.