Question 1

When did the most intense cratering of the Moon take place?

Accepted Answer

A) in modern time 
B) during the early heavy bombardment 
C) during the late heavy bombardment 
D) during the cratering density phase 
A) in modern time 
B) during the early heavy bombardment 
C) during the late heavy bombardment 
D) during the cratering density phase

Question 2

Planets beyond our solar system

Accepted Answer

A) do not exist. 
B) are thought to exist but have not yet been discovered. 
C) are called exoplanets. 
D) are called planetsimals. 
A) do not exist. 
B) are thought to exist but have not yet been discovered. 
C) are called exoplanets. 
D) are called planetsimals.

Question 3

Which of the following is true of the Jovian planets?

Accepted Answer

A) They are the four innermost planets. 
B) They have high average densities. 
C) They are all composed of rocky or metallic materials. 
D) They all have moons. 
A) They are the four innermost planets. 
B) They have high average densities. 
C) They are all composed of rocky or metallic materials. 
D) They all have moons.

Question 4

Pluto is one of many objects in the

Accepted Answer

A) Kuiper Belt. 
B) Oort Cloud. 
C) asteroid belt. 
D) interplanetary space. 
A) Kuiper Belt. 
B) Oort Cloud. 
C) asteroid belt. 
D) interplanetary space.

Question 5

Contrast the atmospheres of Venus and Earth. Specifically, how are they the same or different in terms of composition, thickness, and greenhouse effect? What effect does this have on surface temperatures?

Accepted Answer

Student answers will vary but may be sim

Question 6

Contrast asteroids and comets. How do they differ in terms of composition and location within our solar system?

Accepted Answer

Asteroids are rocky or metallic objects.

Question 7

Which of the following best explains the amount of micrometeorite impacts on Earth relative to the Moon?

Accepted Answer

A) The Moon and Earth are impacted with the same frequency. 
B) The Moon and Earth are impacted with the same frequency, but because the moon is smaller, the impact density is greater. 
C) Earth receives fewer impacts than the Moon because the majority of micrometeorites approaching Earth encounter the Moon first and thus impact it instead. 
D) Earth receives fewer impacts than the Moon because the majority of micrometeorites approaching Earth burn up in the atmosphere. 
A) The Moon and Earth are impacted with the same frequency. 
B) The Moon and Earth are impacted with the same frequency, but because the moon is smaller, the impact density is greater. 
C) Earth receives fewer impacts than the Moon because the majority of micrometeorites approaching Earth encounter the Moon first and thus impact it instead. 
D) Earth receives fewer impacts than the Moon because the majority of micrometeorites approaching Earth burn up in the atmosphere.

Question 8

Which of the following is MOST true of moons?

Accepted Answer

A) Moons orbit the Sun. 
B) Moons orbit a planet. 
C) The objects in the Kuiper Belt are examples of moons. 
D) All planets have moons. 
A) Moons orbit the Sun. 
B) Moons orbit a planet. 
C) The objects in the Kuiper Belt are examples of moons. 
D) All planets have moons.

Question 9

Rocky or metallic objects larger than 100 m (330 ft) are known as

Accepted Answer

A) comets. 
B) asteroids. 
C) meteors. 
D) meteorites. 
A) comets. 
B) asteroids. 
C) meteors. 
D) meteorites.

Question 10

Which of the following planets has a core that contains rock and ice?

Accepted Answer

A) Earth 
B) Mars 
C) Jupiter 
D) Venus 
A) Earth 
B) Mars 
C) Jupiter 
D) Venus

Question 11

A meteor is

Accepted Answer

A) composed of rock and metal. 
B) composed of rock and ice. 
C) a light streak, also known as a shooting star. 
D) a meteoroid that survives the Earth's atmosphere and strikes the ground. 
A) composed of rock and metal. 
B) composed of rock and ice. 
C) a light streak, also known as a shooting star. 
D) a meteoroid that survives the Earth's atmosphere and strikes the ground.

Question 12

Observe the image of the moon below. The feature the arrow is pointing to is likely a(n)

Accepted Answer

A) large volcanic crater. 
B) prominent erosional feature. 
C) impact crater. 
D) lunar regolith. 
A) large volcanic crater. 
B) prominent erosional feature. 
C) impact crater. 
D) lunar regolith.

Question 13

Loosely bound aggregates of rock and ice are

Accepted Answer

A) comets. 
B) asteroids. 
C) meteors. 
D) meteorites. 
A) comets. 
B) asteroids. 
C) meteors. 
D) meteorites.

Question 14

In order to become a planet, protoplanets needed to

Accepted Answer

A) finish cooling. 
B) age. 
C) captureat least one moon. 
D) clear their orbits of debris. 
A) finish cooling. 
B) age. 
C) captureat least one moon. 
D) clear their orbits of debris.

Question 15

Which of the following is MOST true of the presence of water on Mars?

Accepted Answer

A) There is no water, nor any evidence of water, on Mars. 
B) There is evidence that suggests that there may have once been water on Mars, but no water remains. 
C) There is evidence that suggests that liquid water may have existed on Mars, and the presence of water as ice has been discovered in the subsurface. 
D) Liquid water has been discovered on the surface of Mars. 
A) There is no water, nor any evidence of water, on Mars. 
B) There is evidence that suggests that there may have once been water on Mars, but no water remains. 
C) There is evidence that suggests that liquid water may have existed on Mars, and the presence of water as ice has been discovered in the subsurface. 
D) Liquid water has been discovered on the surface of Mars.

Question 16

Note the frost line in the image below. Which of these planets formed outside of the frost line?

Accepted Answer

A) Jupiter 
B) Mercury 
C) Earth 
D) Mars 
A) Jupiter 
B) Mercury 
C) Earth 
D) Mars

Question 17

A planet does NOT necessarily have to

Accepted Answer

A) orbit a star. 
B) be spherical (large enough for internal gravitation to have smoothed out the bumps on the surface). 
C) have one or more moons. 
D) have cleared its orbit of other objects. 
A) orbit a star. 
B) be spherical (large enough for internal gravitation to have smoothed out the bumps on the surface). 
C) have one or more moons. 
D) have cleared its orbit of other objects.

Question 18

What is a moon? Do all planets have moons?

Accepted Answer

A moon is a natural

Question 19

What are the ice giants? How do they differ from the gas giants?

Accepted Answer

Uranus and Neptune, the farthest two pla

Question 20

Which of the following planets is most similar to Earth?

Accepted Answer

A) Mercury 
B) Saturn 
C) Uranus 
D) Neptune 
A) Mercury 
B) Saturn 
C) Uranus 
D) Neptune

Exam 22: Our Neighborhood in Space

When did the most intense cratering of the Moon take place?

Planets beyond our solar system

Which of the following is true of the Jovian planets?

Pluto is one of many objects in the

Contrast the atmospheres of Venus and Earth. Specifically, how are they the same or different in terms of composition, thickness, and greenhouse effect? What effect does this have on surface temperatures?

Contrast asteroids and comets. How do they differ in terms of composition and location within our solar system?

Which of the following best explains the amount of micrometeorite impacts on Earth relative to the Moon?

Which of the following is MOST true of moons?

Rocky or metallic objects larger than 100 m (330 ft) are known as

Which of the following planets has a core that contains rock and ice?

A meteor is

Observe the image of the moon below. The feature the arrow is pointing to is likely a(n)

Loosely bound aggregates of rock and ice are

In order to become a planet, protoplanets needed to

Which of the following is MOST true of the presence of water on Mars?

Note the frost line in the image below. Which of these planets formed outside of the frost line?

A planet does NOT necessarily have to

What is a moon? Do all planets have moons?

What are the ice giants? How do they differ from the gas giants?

Which of the following planets is most similar to Earth?

The Earth in Context

The Way the Earth Works: Plate Tectonics

Patterns in Nature: Minerals

Up From the Inferno: Magma and Igneous Rocks

A Surface Veneer: Sediments and Sedimentary Rocks

A Process of Change: Metamorphism and the Rock Cycle

Crags, Cracks, and Crumples: Crustal Deformation and Mountain Building

A Violent Pulse: Earthquakes

Deep Time: How Old Is Old

A Biography of Earth

Riches in Rock: Energy and Mineral Resources

Shaping the Earths Surface: Landscapes, the Hydrologic Cycle, and Mass Wasting

Freshwater: Streams, Lakes, and Groundwater

Extreme Realms: Desert and Glacial Landscapes

Ocean Waters: the Blue of the Blue Marble

Marine Geology: the Study of Ocean Basins and Coasts

The Air We Breathe: Introducing Earths Atmosphere

Winds of the World: the Earths Major Weather Systems

Thunderstorms, Tornadoes, and Local Weather Systems

Climate and Climate Change

Our Solar System and Beyond

The Sun, Stars, and Deep Space

Prelude: Welcome to Earth Science

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