Lesson 2: Our Solar System, Part 1

Front

What causes the moon to change in size and shape each month?

Back

The moon changes in size and shape because the light from the sun reflects differently as the Earth rotates, changing what parts of the moon we can see.

Front

True or False: The moon gives off its own light.

Back

False, the moon does not give off its own light; it reflects light from the sun.

Front

What is a halo around the moon?

Back

A halo around the moon occurs when the moon is between the sun and Earth, allowing us to see only the part of the sun that the moon hasn't blocked out.

Front

What is the main source of light that the moon reflects?

Back

The main source of light that the moon reflects is the sun.

Front

Why can we see the moon at night?

Back

We can see the moon at night because it reflects sunlight.

Front

What is the shape of the moon when it is full?

Back

When the moon is full, it appears as a complete circle.

Front

What happens to the moon during a new moon phase?

Back

During a new moon phase, the moon is not visible from Earth because it is between the Earth and the sun.

Front

What is the term for the different shapes of the moon we see?

Back

The different shapes of the moon are called phases.

Front

How long does it take for the moon to complete one full cycle of phases?

Back

It takes about 29.5 days for the moon to complete one full cycle of phases.

Front

What is the term for the path the moon takes around the Earth?

Back

The path the moon takes around the Earth is called its orbit.