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In this activity (on page 1), learners role play as atoms to explore how atoms can be rearranged to make different materials.

In this activity (on page 146 of the PDF), learners will explore the effects of increased carbon dioxide in the bloodstream.

In this activity, learners place cards featuring biological structures in order by their relative size from largest to smallest.

In this activity, learners discover if carbon dioxide has an effect on temperature.

In this activity (on page 142 of the PDF), learners will compare breathing rates before and after hyperventilation to explore how reduced carbon dioxide levels in the blood lower the need to breathe.

In this activity, learners act out the flow of blood in the human body! A great way to get learners up and moving while learning about the circulatory system.