The document discusses the causes of night and day. It explains that as the Earth rotates on its tilted axis, it causes different parts of the planet to face toward or away from the Sun, resulting in day and night. The Earth completes one rotation in 24 hours. Some areas experience longer or shorter periods of daylight depending on their proximity to the poles, where the Sun may never set or rise during certain times of the year.

1. By Olivia
NIGHT AND DAY

2. WHAT CAUSES NIGHT AND DAY ?
Night and day is caused by
the earth spinning on it’s
axis around the sun. It
take 24 hours for the earth
to rotate around once on
its axis. When Australia
faces the sun it is day
time. As Australia moves
away from the sun as the
earth rotates, it becomes
dark. Once the earth has
rotated once, it becomes
day again.

3. ROTATIONS
The earth spins
on an axis of 23.5
degree tilt. It
takes 1 day (24
hours) for the
earth to spin
around fully.
When the earth
spins it causes
day and night.
Half of the earth
is facing the sun
it is day and the
other side is night

4. WHY DAY AND NIGHT HAVE
DIFFERENT HOURS
 If the Earth’s axis was straight to the orbital plane,
Australia would have the same amount of day as night
as every other country in the world. For example 12
hours of day and 12 hours of night.

5. WHY DAY AND NIGHT HAVE
DIFFERENT HOURS
o This picture
shows the
earth spinning
on it’s axis. The
sun is shining
on half the
earth which is
day and the
other half is
night.
o At the ends of the earth like the North and South poles, the Sun
may never set or never rise at certain times of the year. As the
sun is always on these parts of the world.

6. THANK YOU FOR
LISTENING