True or False 1. Mercury is very cold during the day and very cold at night.

2. Venus is the hottest planet in the solar system.

3. The fourth planet, Mars, is named for the Roman god of war.

4. Jupiter is the biggest planet that we know of.

5. Saturn is 100 times the size of Earth.

6. Neptune takes more than 170 years to go round the sun.

7. Pluto is not considered as planet anymore because of its

strange orbit.