science signs
138 signs indexed. Search resolves plurals and verb endings, so “running” finds “run”.
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extinct
science
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fiber
science
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flow rate
science
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food chain
science
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fossil
science
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fossil fuel
science
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frequency
science
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friction
science
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fusion energy
science
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grafting
science
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graphite
science
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groundwater
science
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hardness
science
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hydroelectric energy
science
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hydrogen
science
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incubation
science
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inherited
science
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invertebrate
science
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isotopes
science
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landform
science
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life cycle
science
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light year
science
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local winds
science
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lunar eclipse
science
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