Lesson 4: Heat and the Sun
Today you will explore heat as a form of energy and will examine the role the Sun plays as a light and heat source. You will also learn the laws that govern energy.
Stuff You Need
- ScienceWiz Energy box
- 3 glasses or cups
- black marker
- double-sided tape
- note cards (kit)
- tea candle (kit)
Ideas to Think About
- What is the unique relationship between the Sun and living things?
- What is the role of the Sun in different types of energy?
Things to Know
- Thermodynamics means moving heat.
- The first law of thermodynamics states that energy cannot be created or destroyed, but it can be changed.
- The second law of thermodynamics states that energy always moves from hot things to cold things.
- The third law of thermodynamics states that nothing can be colder than absolute zero (-276.16 degrees C / - 459.67 degrees F).
- The Sun's energy can be used to do work and to heat our homes.
- Recognize that energy comes from the Sun to the Earth in the form of light. (S)
- Identify sources of stored energy, such as food, fuel, and batteries. (S)
- Understand that heat is transferred from hot things to cool things. (S)
Introducing the Lesson
Explain to your child that today she will explore the Sun's role as a source of energy. The activities for Day 2 require a sunny day. If you don't have the proper weather conditions, move on to the next lesson and complete this lesson on your next sunny day.