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K-Earth Science
History of Earth
Term | Definition |
---|---|
fossil | A trace of an ancient organism that has been preserved in rock. |
oxygen | a gas that has no color or smell, is present in air, and is necessary for most animals and plants to live. Ex. the chemical symbol for _____ is O. |
glacier | Any large mass of ice that moves slowly over land |
expand | to open up, make or grow larger; to develop |
melt | change from a solid to a liquid |
Earth | Third planet from the sun |
movement | an act of changing physical location or position or of having this changed. |
water | A liquid made of hydrogen and oxygen. |
rain | water falling in drops from vapor condensed in the atmosphere |
equator | An imaginary circle around the middle of the earth, halfway between the North Pole and the South Pole |