Teacher
Grade 6 – CPO Earth Science KEY
__B
__ 17. Which substance has the greatest effect on the rate at which rocks weather (break down)?
a. Sunlight
b. Water
__B
__ 18. If sustainable energy sources are not found and society continues to primarily use non
a. pollution will decrease
b. there will be an energy shortage
__A
__ 19. If humans put too much pollution in the environment:
a. plants and animals can die.
b. habitats can be destroyed.
__B__ 20. An astronaut w
eighs 400 Newtons on the Moon’s surface. On Earth they would:
a. weigh less.
b. weigh more
__B
__ 21. The length of a planet’s day is defined by its:
a. mass.
b. period of rotation.
__C
__ 22. Which of the following is most responsible for causing changing seasons on Earth each year?
a. Closeness to Earth to Sun during orbit
b. Speed of Earth’s rotation
__A
__ 23. During which phase of the Moon does a solar eclipse occur?
a. Full Moon
b. New Moon
__C
__ 24. Buoyancy describes the concept that:
a. all objects float in water
b. objects denser than water w
__D
__ 25. The state of water as a solid, liquid, or gas in the water cycle is most affected by:
a. humidity
b. wind
__B
__ 26. As shown on the diagram, the imaginary vertical lines that
are east and west of the prime meridian are called:
a. latitude lines.
b. longitude lines.
__A__
27.
W
hen an object’s volume is made smaller and its mass remains the same, its density:
a. increases.
b. decreases.
Date
__ 17. Which substance has the greatest effect on the rate at which rocks weather (break down)?
c. Chlorophyll
d. Hydrogen
__ 18. If sustainable energy sources are not found and society continues to primarily use non
b. there will be an energy shortage
c. there will be more jobs crea
d. people will stop needing energy
__ 19. If humans put too much pollution in the environment:
c. animals move to cleaner areas.
d. all of the above.
eighs 400 Newtons on the Moon’s surface. On Earth they would:
c. weigh the same
d. increase in mass
__ 21. The length of a planet’s day is defined by its:
c. density.
d. peri
__ 22. Which of the following is most responsible for causing changing seasons on Earth each year?
a. Closeness to Earth to Sun during orbit
c. Tilt of Earth on its axis
d. Amount of meteorites in
__ 23. During which phase of the Moon does a solar eclipse occur?
c. Waning Gibbous
d. First Quarter
__ 24. Buoyancy describes the concept that:
c. less dense objects will float in more dense fluids
d. objects must be filled with air in order to float
__ 25. The state of water as a solid, liquid, or gas in the water cycle is most affected by:
c. amount of water
d. temperature
__ 26. As shown on the diagram, the imaginary vertical lines that
are east and west of the prime meridian are called:
c. contour lines.
hen an object’s volume is made smaller and its mass remains the same, its density:
d. increases then decreases.
__ 17. Which substance has the greatest effect on the rate at which rocks weather (break down)?
__ 18. If sustainable energy sources are not found and society continues to primarily use non
-renewable energy
c. there will be more jobs crea
ted
d. people will stop needing energy
c. animals move to cleaner areas.
eighs 400 Newtons on the Moon’s surface. On Earth they would:
__ 22. Which of the following is most responsible for causing changing seasons on Earth each year?
c. Tilt of Earth on its axis
d. Amount of meteorites in
sky
c. less dense objects will float in more dense fluids
d. objects must be filled with air in order to float
__ 25. The state of water as a solid, liquid, or gas in the water cycle is most affected by:
hen an object’s volume is made smaller and its mass remains the same, its density:
d. increases then decreases.