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Days, nights, years, satellites
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Slide 1

The Solar System and Beyond

The Solar System and Beyond

B Griffiths

Slide 2

You should know .

You should know .

The Earth gets heat and light from the Sun.

The Earth spins on its axis.

The Earth orbits around the Sun.

What day, year and leap year mean.

The moon is a natural satellite of the Earth.

Slide 3

The Earth is divided up into the northern hemisphere and the southern hemisphere:

The Earth is divided up into the northern hemisphere and the southern hemisphere:

Equator

Northern hemisphere

Southern hemisphere

Slide 4

The Earth is tilted on an axis

The Earth is tilted on an axis

North pole

South pole

Slide 5

The Earth is kept in orbit by the force of

The Earth is kept in orbit by the force of

Gravity

and by the fact that is is moving at a high velocity

Slide 6

The Earth spins on its axis every _ ( hours)

The Earth spins on its axis every _ ( hours)

Slide 7

While the Earth is spinning the side that faces the sun is in

While the Earth is spinning the side that faces the sun is in

Slide 8

Day and night

Day and night

Slide 9

This side of the Earth is facing away from the Sun.

This side of the Earth is facing away from the Sun.

It is night time for people that live here.

This side of the Earth is facing the Sun.

It is daytime for the people that live here.

Slide 10

This side of the Earth is facing away from the Sun.

This side of the Earth is facing away from the Sun.

It is night time for people that live here.

This side of the Earth is facing the Sun.

It is daytime for the people that live here.

Slide 11

The Earth orbits the sun every

The Earth orbits the sun every

year (365 1/4 days)

Slide 12

The Earth orbits the Sun

The Earth orbits the Sun

Slide 13

Because of this spin the sun rises in the and sets in the

Because of this spin the sun rises in the and sets in the

Slide 14

Gravity also keeps the moon in orbit around the Earth. The moon orbits the Earth every

Gravity also keeps the moon in orbit around the Earth. The moon orbits the Earth every

days month (28 )

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