In this recognizing the importance of recycling worksheet, students complete a cryptograph, read facts about milk and juice cartons, and read about making crafts from trash. Students write 10 answers.

In this covalent and ionic substances worksheet, students use the internet to find information about the characteristics of covalent and ionic substance and explain what causes the differences in these types of substances.

For this enthalpy and entropy worksheet, students read about the differences between enthalpy and entropy and answer three critical thinking questions about the reading.