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100
the process through which liquid changes into a gas without boiling
What is evaporation?
100
melted rock that is below the Earth's surface
What is magma?
100
an empty space left in a rock after leaves or dead organisms break down
What is a mold?
100
a mixture of minerals, weather rocks, and decayed plant and animal matter
What is soil?
100
an animal without a backbone
What is an invertebrate?
200
the breaking down of rocks into smaller pieces
What is weathering?
200
describes how water moves between Earth's surface and the atmosphere
What is the water cycle?
200
a mountain that builds up around an opening in Earth's crust.
What is volcano?
200
the thinnest layer of the Earth
What is crust?
300
fat under the skin that helps keep animals warm
What is blubber?
300
an adaptation in which an animal is active during the night and asleep during the day
What is nocturnal?
300
an adaptation in which one kind of organism looks like another kind in color or shape
What is mimicry?
300
to rest or go into a deep sleep through the cold winter
What is hibernate?
300
to move from one place to another
What is migrate?
400
an environment that has a dry climate
What is a desert?
400
living things
What is an organism?
400
substances that help organisms live and stay healthy
What are nutrients?
400
an adaptation that allows an organism to blend into its surroundings
What is camouflage?
400
a weather instrument used to measure how fast air is moving
What is anemometer?
500
remains of organisms that lived long ago
What are fossils?
500
all the living and nonliving things in a place
What is an environment?
500
a structure or behavior that helps an organism survive in its environment
What is an adaptation?
500
Earth's coldest environment
What is the tundra?
500
an animal with a backbone
What is a vertebrate?
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