Second Semester Science Review

Which if the following planets is the smallest?

• Earth
• Mars
• Mercury
• Venus

There are ______ phases of the moon.

• 12
• 10
• 8
• 5

What is the correct order of the planets from the sun? 

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

One complete revolution of the Earth around the sun takes about

• one rotation
• half a year
• one year
• one season

The four terrestrial planets all have

• Hot temperatures
• Rocky surfaces
• Deep atmospheres
• Large size

When the moon seems to change shape, it is called a 

• rotation
• orbit
• phase
• rotation

The Earth takes about __________________ hours to complete one rotation of its axis.  

• 12
• 24
• 14
• 28

The moon cycle (lunar cycle) takes approximately _______________ to complete.

• 14 days
• 28 days/approximately one month
• 58 days
• 1 week

High tide and low tide are caused by:

• Only the sun's gravitational pull
• The Earth's tilt on its axis
• The gravitation pull of the moon
• the movement of ocean waves

As the moon's shape appears to get smaller, we say that the moon is _.

• swelling
• waxing
• waning
• disappearing