Science Test Review 3-4 by Christina and Kendall

Front

What is the age of the Moon?

Back

4.6 billion years old.

Front

How long is an Earth year in days?

Back

365.25 days.

Front

What is a Moon phase?

Back

Each different shape of the Moon.

Front

What is a crescent Moon?

Back

The shape of the Moon just after and just before the new Moon phase.

Front

What are rays in the context of the Moon?

Back

White lines that extend in all directions from some craters.

Front

What is the significance of the Moon's age in understanding its formation?

Back

The Moon's age helps scientists understand the history of the Earth-Moon system and the processes involved in their formation.

Front

What causes the different phases of the Moon?

Back

The different phases of the Moon are caused by the relative positions of the Earth, Moon, and Sun.

Front

What is the difference between a waxing and waning Moon?

Back

A waxing Moon is increasing in illumination, while a waning Moon is decreasing in illumination.

Front

What is a full Moon?

Back

A full Moon occurs when the entire face of the Moon is illuminated by the Sun.

Front

What is a new Moon?

Back

A new Moon occurs when the Moon is between the Earth and the Sun, and its illuminated side is facing away from the Earth.