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.