unit 7 summative practice

What is a solar system?

• A system of planets around a sun

• all of the stars in the galaxy

• the sun and pluto

The solar system was created about...

• 100 years ago

• 4.6 billion years ago

• 10 years ago

What is a nebula?

• a moon

• a star

• a cloud of dust in space

what is a supernova?

• a star's death and explosion

• a planet

• a moon

What is gravity?

• a pushing force

• a pulling force

Which is the most accurate on how our solar system formed?

• a supernova exploded and created moons

• a cloud of dust began to spin causing particles to clump together to form our sun and planets

• the asteroid belt began to swirl and built our sun

How many planets are in our solar system

• 1

• 5

• 8

• 18

What is at the center of our solar system

• the earth

• the sun

• the moon

What 4 planets make up the "inner planets"

• Saturn, Uranus, Pluto, The moon

• Mercury, Venus, Earth, Mars

• Mercury, Jupiter, Mars, Neptune

What planets make up the "outer planets"

• Jupiter, Saturn ,Uranus, Neptune

• Saturn, Uranus, Pluto, The moon

• Earth, Venus, Mercury, Mars