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4A2 Science
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Page 83. Name a material that is used to keep things warm and cold.
Styrofoam
Page 83. Name 2 examples of materials that insulate heat. (Stop things from getting cold)
Cotton and wool.
Page 83. How can a napkin keep bread at a restaurant warm?
The napkin helps prevent the heat from transferring from the bread to the air.
Page 82. What is heat?
Heat is the name for the energy that is transferred and moved from warm substances to cooler ones.
Page 81. What do solar panels do?
It collects and stores heat from the sun and converts it into energy.
Page 81. What do some people us solar energy for?
To heat their houses, warm their water, and even to cook!
Page 81. What permits life to exist on Earth? Permit means to 'allow'.
The sun.
Page 80. What 2 categories are energy sources divided into?
Renewable and Non-renewable energy sources.
Page 81. What kind of energy does the sun produce?
Solar energy.
Page 80. Where does our blood circulate through?
Blood circulates through our arteries and veins.