Unit 8: Solar System Review

Front

What happens to the time it takes for a planet to orbit the Sun as it gets farther from the Sun?

Back

The longer it takes to orbit the Sun.

Front

Why is a tether necessary for astronauts during a spacewalk?

Back

Without a tether, astronauts would float away due to the lack of gravity in space.

Front

What are the characteristics of the four planets farthest from the Sun?

Back

They are gas giants.

Front

What are the characteristics of the four planets closest to the Sun?

Back

They are rocky (terrestrial) planets.

Front

What are space probes?

Back

Unmanned spacecraft that gather detailed information about the universe and objects in our solar system.

Front

What do space probes send back to Earth?

Back

Information about a planet’s surface and atmosphere, photographs of distant stars and space objects, and data about the effects of solar winds on planets.

Front

What do space probes NOT send back?

Back

Soil and rocks from the surfaces of planets and moons.

Front

What is the main difference between terrestrial planets and gas giants?

Back

Terrestrial planets have rocky surfaces, while gas giants are composed mostly of gases.

Front

Name the four terrestrial planets in our solar system.

Back

Mercury, Venus, Earth, and Mars.

Front

Name the four gas giants in our solar system.

Back

Jupiter, Saturn, Uranus, and Neptune.