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Science Vocabulary Chapter 1 Lesson 1-3

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Across
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A material found in nature that is useful to humans
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A period in history when humans started using machines
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Anything added to the environment that is harmful to living things
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Radiation that is made up of electric and magnetic waves
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A field of study that uses scientific knowledge to solve practical problems
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To break apart
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An organism's natural and human made surroundings
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A repeated pattern
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Farming
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The languages, religions, customs, arts, and dress of a people
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To breed and produce offspring
Down
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The scientific name for humans
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The place where an organism lives
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A group of organisms that can breed with each other
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The study of how living things, including humans, interact with their environment
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The characteristics of the land
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What humans made
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All living and nonliving things found in nature
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A person who hunts and gathers food
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A living thing
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The basic unit of life
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To produce in large quantities using a machine
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The ability to do work
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A chemical organisms need to grow