| Nature of Matter |
- Explain that equal
volumes of different substances usually have different masses.
- Describe that in a chemical change
new substances are formed with different properties than the original
substance (e.g., rusting, burning).
- Describe that in a physical change
(e.g., state, shape and size) the chemical properties of a substance
remain unchanged).
- Describe that chemical and physical
changed occur all around us (e.g., in the human body, cooking and
industry).
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| Nature of Energy |
- Explain that the energy
found in nonrenewable resources such as fossil fuels (e.g., oil, coal, and
natural gas) originally came from the sun and may renew slowly over
millions of years.
- Explain that energy derived from
renewable resources such as wind and water is assumed to be available
indefinitely.
- Describe how electric energy can be
produced from a variety of sources (e.g., sun, wind and coal).
- Describe how renewable and
nonrenewable energy resources can be managed (e.g., fossil, fuels, trees
and water).
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