Unit 2 Study Guide

How many Earths would fit inside the Sun?

• One million

• Ten thousand

• One hundred thousand

• Ten million

Tags

NGSS.MS-ESS1-3

What percentage of the Solar System's total mass does the Sun account for?

• 99.8 percent

• 75 percent

• 50 percent

• 10 percent

Tags

NGSS.MS-ESS1-3

Why do the Sun and Moon appear to be the same size when viewed from Earth?

• Because the Sun is 400 times larger than the Moon but the Moon is 400 times closer to the Earth than the Sun, so they appear the same size.

• Because the Sun and Moon are actually the same size.

• Because the Earth's atmosphere magnifies the Moon to match the Sun's size.

• Because the Moon reflects the Sun's light, making it look the same size as the Sun.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-3

What is the tilt of Earth's axis?

• About 23.5 degrees

• About 0 degrees

• About 45 degrees

• About 90 degrees

What is the definition of Earth's axis?

• An imaginary line that runs through the center of the Earth from the North Pole to the South Pole, around which the Earth rotates.

• A visible line on Earth's surface that separates land and water.

• A path that the Earth follows around the Sun.

• A layer of gases that surrounds the Earth.

Tags

NGSS.MS-ESS1-1

What is the Northern Hemisphere?

• The top half of the Earth, located above the equator, where places like North America, Europe, and most of Asia are found.

• The bottom half of the Earth, located below the equator, where Antarctica is found.

• A region that only includes the North Pole and no other continents.

• The area between the Tropic of Cancer and the Tropic of Capricorn.

What is the Southern Hemisphere?

• The bottom half of the Earth, located below the equator, including continents like South America, Australia, and most of Antarctica.

• The top half of the Earth, located above the equator, including continents like North America and Europe.

• A region located only in the Northern Hemisphere.

• A term used to describe the center of the Earth.

Which statement best explains the difference between rotation and revolution in a model of the Earth and Sun?

• Rotation is the Earth spinning on its axis, while revolution is the Earth orbiting around the Sun.

• Rotation is the Earth moving around the Sun, while revolution is the Earth spinning on its axis.

• Rotation and revolution both mean the Earth spins on its axis.

• Rotation and revolution both mean the Earth orbits the Sun.

Tags

NGSS.MS-ESS1-1

Which coin represents the Earth, which represents the Moon, and which represents the Sun when using a quarter, nickel, and dime to model their sizes?

• Quarter = Moon, Nickel = Earth, Dime = Sun

• Quarter = Sun, Nickel = Earth, Dime = Moon

• Quarter = Earth, Nickel = Moon, Dime = Sun

• Quarter = Sun, Nickel = Moon, Dime = Earth

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-3

What is the degree of Earth's tilt on its axis?

• 23.5 degrees

• 0 degrees

• 45 degrees

• 90 degrees