Topic 6 and 7 Lesson 1 Vocabulary Review

A force that pulls objects toward each other.

• mass

• gravity

• space

• time

____ is what pulls us back to the Earth's surface, rather than floating up into space.

Which planet is closest to the sun?

• Earth
• Venus
• Mercury
• Mars

What are the Inner Planets?

• Mercury, Mars, Earth, and Venus

• Earth, the Moon, Mars

• Neptune, Pluto, Earth

• Earth, the Sun, the Moon

The only planet that has life

• Mercury
• Saturn
• Earth

The hottest planet

• Mars
• Venus
• Mercury

Which of these planets has no moons?

• Mercury

• Earth

• Mars

The red planet

• Earth

• Mars

• Jupiter

• Venus

Mercury is the ____ planet from the sun. 

• 1st
• 2nd 
• 3rd
• 4th

The 2nd planet from the Sun is...

• Venus
• Mars
• Earth
• Pluto