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earth science
earth science
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3rd grade, earth science, soil, rocks, fossils
Flashcards
10 cards
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Practice quiz
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Questions
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Answers
1
water and wind can break rock into small pieces. What happens to these pieces when they break?
plants use them for energy
they turn into earth worms
the become food for animals
they become part of the soil
2
Which surface feature of the earth is most likely formed by the process of erosion?
volcanoes
caves
deltas
lakes
3
a soil sample contains living and non-living materials. Which material was once living?
small rocks
water
decomposing leaves
sand particles
4
We found a rock with ocean plant and animal fossils. What does this tell us about the rock?
the rock is gray and brown
the rock needs to be washed
the rock is heavier than most rocks
the rock was once at the bottom of the ocean
5
What causes rocks in a stream to be smooth?
weathering
earthquakes
fish movements
air currents
6
The remains of animals that lived millions of years ago are called...
shale
minerals
fossils
rocks
7
which of the following is NOT a part of soil?
temperature
once living materials
clay
silt
8
Which would NOT be responsible for breaking down rocks into smaller pieces?
the spinning of the earth
waves the beat upon rocks
the freezing and thawing of ice
plant roots invade the rocks
9
Scientists learn what organisms were like in the past by studying....
minerals
rocks
water
fossils
10
Which of the following statements is true?
rocks are made of mierals
rocks are living materials
none of the above
there are only two types of minerals
