Where does the pop in pop rocks come from? An engaging activity asks scholars to measure the amount of carbon dioxide in a package of Pop Rocks candy. Learners dissolve the candy in water and use the solubility of CO2 to determine its mass.

In this sentence completion worksheet, students read the sentences and choose the best word to complete each sentence. Students complete 12 sentences.

In this mammals worksheet, students read about 3 mammal characteristics: endotherm, diaphragm, and mammary glands. Students use this information to complete 4 short answer questions.