THIRD
1. Weathered fragments are often carried away by a natural process called _____
a. exfoliation
b. erosion
c. decomposition
d. nitrogen fixation
b. erosion
26. What Earth does every 24 hours on its axis.
a. orbit
b. revolution
c. rotate
c. rotate
13. There are____ hours in a day.
a. 5
b. 24
c. 12
d. 3
b. 24
10. Every object revolves around the Sun in a path called a(n)
a. ellipse
b. orbit
c. revolution
b. orbit
29. The _____________is the outermost layer of Earth and made of two parts - the crust and the rigid upper part of the mantle.
a. asthenosphere
b. lithosphere
c. outer core
d. inner core
b. lithosphere
2. There are known planets in our
solar system.
a. seven
b. eight
c. five
d. two
b. eight
19. A group of stars in the sky form a ___________.
a. Light year
b. galaxy
c. constellation
c. constellation
4. The layer of rock that forms Earth's outer shell is called what?
a. mantel
b. crust
c. core
d. rift valley
b. crust
22. What is Earth's atmosphere comprised mostly of?
a. Argon
b. Hydrogen
c. Oxygen
d. Nitrogen
d. Nitrogen
7. The ___________ is the star closest to Earth.
a. Space station
b. cloud
c. sun
d. telescope
c. sun
3. What comes between the inner and outer planets?
a. an asteroid belt
b. the Milky Way
c. the Sun
d. Titan
a. an asteroid belt
5. ___________________is weight of air pressing down on Earth.
a. Mass
b. Air Temperature
c. Gravity
d. Air Pressure
d. Air Pressure
23. Earth’s atmosphere is composed of about 21%
a. argon
b. oxygen
c. hydrogen
d. nitrogen
b. oxygen
6. Earth’s thin outer layer, the ______________ is made almost entirely of light elements.
a. core
b. crust
c. mantle
d. surface
b. crust
28. List the four inner planets in order from the Sun.
a. Mercury, Venus, Earth, Mars
b. Mercury, Earth, Venus, Neptune
c. Mars, Earth, Venus, Mercury
d. Mars, Venus, Earth, Saturn
a. Mercury, Venus, Earth, Mars
18. What is the part of the Earth system that contains all of Earth’s water called?
a. Atmosphere
b. Geosphere
c. Hydrosphere
d. Biosphere
c. Hydrosphere
8. Lowest layer of the atmosphere. Weather occurs in this layer.
a. Exosphere
b. Troposphere
c. Stratosphere
d. Mesosphere
b. Troposphere
9. Precipitation made of balls or lumps of ice.
a. sleet
b. freezing rain
c. hail
d. fog
c. hail
12. Water vapor, which is a gas, loses energy and changes into liquid water
a. Evaporation
b. Precipitation
c. Condensation
d. Humidity
e. Relative Humidity
c. Condensation
14. _____________is the fifth and largest planet in the solar system.
a. Uranus
b. Saturn
c. Jupiter
c. Jupiter
25. Which is a theory that Earth’s crust and upper mantle are broken into sections?
a. Continental Drift
b. Earthquakes
c. Plate Tectonics
d. Rock Cycle
c. Plate Tectonics
17. In which atmospheric layer do meteors burn up?
a. troposphere
b. stratosphere
c. mesosphere
d. thermosphere
c. mesosphere
21. All of the following are inner planets EXCEPT which one?
a. Venus
b. Mars
c. Neptune
d. Earth
c. Neptune
16. The phrase "average weather" BEST describes
a. climate.
b. forecasting.
c. local precipitation.
d. current atmospheric activity
a. climate.
24. How long does it take Earth to orbit the Sun?
a. 88 days
b. 365 days
c. 12 years
d. 29.5 years
b. 365 days