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Earth Space Science
Review Sheet
VOCABULARY
TERM
DEFINITION #
DEFINITION CHOICES
Elliptical
1. The path an object takes around
another object.
Rotation
2. A sphere of glowing gases that gives
off heat and light.
Revolve
3. The thin layer of gas that surrounds a
planet or moon.
Planet
4. To move in an orbit around another
object. It takes 365 days for the earth
to do this around the sun.
Orbit
5. To convert a resource into something
new, so it can be used again.
Star
6. An imaginary line that runs through
the North Pole and South Pole of Earth.
This is what the Earth spins on.
Sun
Atmosphere
Axis
Moon
7. The name for the closest star to
Earth. It is the center of our solar
system.
8. This is the shape of Earth’s orbit.
It is round, but not a perfect circle.
9. A large object that moves around a
star. There are 9 of these in our solar
system.
10. To use a resource again.
Reduce
11. The act of turning on an axis. It
takes the earth 24 hours to do this.
Reuse
12. A large rocky object that revolves
around a planet.
Recycle
13. To use less of a resource.
Describe why there is night and day on
Earth.
Word Bank:
Rotate
(rotation)
Axis
Sun
24 hours
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Describe the movement of the moon and it’s relationship to
Earth.
Word Bank:
Revolve
1 month
gravity
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Explain Earth’s place in space.
Word Bank:
Sun
Planets
Solar System
Orbit
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Why does Earth have seasons?
Word Bank:
Orbit
Titled axis
North Pole
South Pole
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List 3 facts about the Earth’s axis.
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2.
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Show your understading of Earth’s movement in space by
using the words in the word bank to make each sentence
below true.
WORD BANK
Revolve
Rotate
axis
24 hours
365 days
orbit
It takes ________________ for Earth to __________________ around the Sun
on its
_______________.
It takes ________________ for Earth to __________________ on its
_______________.
Explain why the stars at night appear so small.
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Use the words in the word bank below to show your
understanding of renewable and nonrenewable resources on
Earth.
RENEWABLE
NONRENEWABLE
* resources used quicker than it
can be replaced.
* resources that can be produced
or replaced easily. These
resources will not run out.
Trees
Wind
Plants
Natural gas
Hydro power
(water)
Geothermal (heat
from ground)
Oil
Solar
energy
Coal
Air
Soil
Animals
Write the definition for each of these words: REDUCE,
REUSE, and RECYCLE. Why is it important for humans to do
the 3 R’s?
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