Ask students to work in small groups to think of a way that heat is used in everyday life. In addition to cooking food or using a clothes dryer, other examples include using an electric blanket to warm up, using a blow dryer to dry your hair, or building a fire in a fireplace. Have students act out for the class the activity that uses heat. The rest of the class can take turns guessing what activity is being performed. When the activity is guessed, have the student group explain their activity and how heat affects the objects in the activity. 
 

As an educator, it is helpful to know that this standard uses the word heat in a simplified way. In science, heat refers to energy transferred when two objects or systems are at different temperatures. Temperature is a measure of the average kinetic energy of particles of matter. The relationship between the temperature and the total energy of a system depends on the types, states, and amounts of matter present.  In grade 1, students should be able to discuss heat by describing whether an object is getting warmer or cooling down.