Energy and Solar Ovens

Review

Matter is made up of particles or molecules. These molecules move (or vibrate) constantly.

A rise in the temperature of matter makes the particles vibrate faster.

• Thermal energy is what we call energy that comes from the temperature of matter.

• The hotter the substance, the more its molecules vibrate, and the therefore the higher its thermal energy.

Types of Energy Transfer Review

• There are three types of energy transfer

• 1. This type of transfer is through direct touch….what is it?

• 2. This type of transfer occurs in liquids and gases. It is caused by the movement of particles. What is it?

• 3. This type of energy transfer occurs through waves. The sun heats the earth through this type of transfer. What is it?

Let’s Focus on Radiation

• Today we will learn about solar cookers and you will design your own using the materials provided.

• We will test these cookers outside tomorrow of Friday (weather permitting)

• Solar radiation is light energy from the Sun.• So you've got the Sun. Millions of kilometers

away from the Earth it constantly giving off a huge amount of energy and radiation.

• Why does it get hot inside a car?

• Why does the parking lot black top get hot?

• You are going to use their knowledge of solar and thermal energy to create a working device.

• You are going to create a working solar oven out of a pizza box, wax paper, aluminum foil, construction paper, and clear packing tape.