Earth's Place in the Universe

What is gravity?

• a force between objects that pushes them apart
• a force between any two objects that pulls them together
• a force that causes objects to remain at rest
• potato salad

Gravity is responsible for the . . . 

• sun rotating around the planets
• sun revolving around the planets
• planets revolving around the sun
• planets rotating of a planet around the sun

What are gas giants?

• A large planet composed mainly of gas. 
• A small planet composed mainly of rocky material.
• All the stars in the universe.
• A group of planets that are closest to the sun. 

Which planets are gas giants?

• Mercury, Venus, Earth, Mars
• Mars, Jupiter, Saturn, Uranus
• Saturn, Uranus, Neptune, Pluto
• Jupiter, Saturn, Uranus, Neptune

What are terrestrial planets?

• A large planet composed mainly of gas.
• A small planet composed mainly of rocky material.
• All the stars in the universe.
• A group of planets that are farthest from the sun. 

List the terrestrial planets in our solar system.

• Mercury, Venus, Earth, Mars
• Mars, Jupiter, Saturn, Uranus
• Saturn, Uranus, Neptune, Pluto
• Jupiter, Saturn, Uranus, Neptune

What is rotation?

• the tilt of earth on its axis
• to go around another object. 
• to spin on an axis and causes day and night
• potato chips

What is revolution?

• to go around another object

• to spin on an axis

• a fundamental change in political power

• baked potato

The ___________ the planet is from the sun, the ____________ it takes to go around the sun. 

• closer, shorter
• farther, shorter
• farther, longer
• closer, longer

List the order of the planets, starting form the sun. 

• Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
• Mercury, Venus, Earth, Mars, Saturn, Jupiter, Neptune, Uranus
• Neptune, Uranus, Saturn, Jupiter, Mars, Earth, Venus, Mercury
• Mars, Earth, Venus, Mercury, Jupiter, Saturn, Uranus, Neptune