When is a Planet Not a Planet?

Front

What do the Planet Finders use to look for planets?

Back

A wide field telescope and a camera.

Front

What word defines rules used to measure; set standards?

Back

Criteria.

Front

What is the opposite of approximately?

Back

Exactly.

Front

What is the main difference between the planets closest to the sun and those farthest from the sun?

Back

The planets closest to the sun have a rocky surface, while the planets farthest from the sun are made up mostly of gas.

Front

What tool would best help a person do a calculation?

Back

Computer.

Front

What is a planet?

Back

A celestial body that orbits a star, is spherical in shape, and has cleared its orbit of other debris.

Front

What is the criteria for classifying a celestial body as a planet?

Back

It must orbit a star, be spherical in shape, and have cleared its orbit.

Front

What is the difference between terrestrial and gas giant planets?

Back

Terrestrial planets are rocky, while gas giants are mostly made of gases.

Front

Name the four terrestrial planets in our solar system.

Back

Mercury, Venus, Earth, Mars.

Front

Name the gas giants in our solar system.

Back

Jupiter, Saturn, Uranus, Neptune.