Lesson 3: Heat and Temperature

Getting Started

Questions to Explore

  • How does the weather affect living things?
  • Why do we study and observe the weather?
  • What causes the weather?
  • How is weather measured?
  • Why does the weather change?

Facts and Definitions

  • The Sun heats the Earth.
  • A thermometer is a tool used to find the temperature of something.


  • Discuss and determine how energy from the Sun warms the land, air, and water. (S)
  • Describe weather using quantitative measures of temperature, wind direction, wind speed, and precipitation. (S)
  • Gather information using simple equipment and tools. (S)
  • Observe and record weather changes over time and relate to time of day and year. (S)


  • The Kids' Book of Weather Forecasting by Mark Breen and Kathleen Friestad
  • construction paper* (Activity 4 - optional)
  • crayons, markers, or colored pencils
  • glue* (Activity 4 - optional)
  • scissors* (Activity 4 - optional)
  • thermometer

* - denotes an optional material that may or may not be needed


Ask your child where heat comes from and what makes the weather warm. Explain that all of our heat comes from the Sun's energy. The Sun is millions of miles away, but its energy passes through space to reach us eight minutes later. Some of that energy we see as light, but a lot of it we cannot see. When the Sun's energy is absorbed by the Earth, it warms the Earth.


  1. Fill out your weather log each day as outlined in Lesson 1.
  2. Record the air pressure as outlined in Lesson 2.