A great hands on activity! Place items around your room an have students walk around independently or with a partner to complete. They will decide whether the source of heat is from the sun, friction, electricity, body heat, or a chemical reaction.
Students will use this during their study of Rocks and Minerals. They will test the hardness of 4 different minerals by scratching them with a fingernail, penny, and steel nail. Students will record their findings in the chart. Great hands on