4th Grade Science Year End Review
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Animals can be vertebrates or invertebrates. Name 3 groups of invertebrates.
worms, arthropods, echinoderms and molluscs
In an ecosystem, all living things need food. Plants make their own food and they are called.
producers
Non-living and living things interact in an ecosystem. Sunlight, wind, water and oxygen are ________.
abiotic factors
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