Page 49 - York Global Science 1 - Earth & Space

Earth and Space Science

In the day we have light from the Sun. This is called daytime.

At night we do not have any light from the Sun. This is called

night-time.

The daytime starts at sunrise. This is when we first see the

Sun. The daytime ends at sunset. This is when night starts.

The hours of daytime are not the same all of the time. They

are different in different seasons. The changes have the same

pattern every year. So we know at what time sunrise and

sunset will be each day.

In summer, sunrise is earlier than in winter. In summer, sunset

is later than in winter. So we have longer daytimes in summer.

49