Inner Planets - Day 1

What are the Inner Planets - Day 1

Pages 153-155

Multiple Choice

How many planets revolve around the sun?

• 4

• 8

• 9

• 12

Multiple Select

What TWO characteristics define a planet?

• made of rock.

• large, round and revolve around a star.

• rotates and revolves

• has cleared the region around its orbit

Multiple Choice

What is the shape of the orbits of the planets?

• round

• elliptical

• square

• zig-zaggy

Multiple Choice

What causes the planets to stay in their orbits?

• Newton's 1st Law of Motion

• to avoid running into other planets

• its the law of the solar system

• the gravitational force of the sun

Multiple Choice

What is the name of the thousands of small objects that orbit the sun between Mars and Jupiter?

• asteroid belt

• ring of rocks

Multiple Choice

Mercury is very close in size to _____.

• Earth

• Mars

• Venus

• Earth's Moon

Multiple Choice

Which does NOT describe a space probe?

• It is a spacecraft.

• It send astronauts into outer space.

• It carries cameras and other tools for studying objects in space.

• It does not have a crew on board.

Multiple Select

Select ALL the true statements about Mercury.

• It is the closest planet to the sun.

• It is super hot during the day.

• It has almost no atmosphere.

• It is covered by craters from being hit by meteorites.

• It is very cold at night.