The shadow of the moon falls on the earth, as is represented in [Fig. 5].

Fig. 5.

What does this produce?

It produces an eclipse of the sun.

When the moon is between the sun and the earth, can we see the sun?

No; we cannot see the sun, because the moon prevents the rays of the sun from coming to us.

When the moon prevents the sun’s rays from falling on us, what is it called?

It is called an eclipse of the sun.

When the moon prevents all the sun’s rays from falling on us, what is it called?