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Transcript

The Moon

The brightest object in the night

About

  • The Moon is the Earth's only natural satellite

  • The Moon is a dusty ball of rock, measuring 3,476km in diameter, that’s roughly a quarter of the size of Earth.

  • Its surface is home to mountains, huge craters and flat planes called ‘seas’ made of hardened lava.

Gravity

The Moon’s gravity is weaker, only one sixth of the Earth’s gravity, in fact.

That means you’d weigh much less if you were to stand on the Moon!

The Moon reflects light from the Sun

Shapes &

Phases

  • The Moon changes it shape each night

  • That’s because as the Moon orbits the Earth, the Sun lights up different parts of its surface

it’s just our view of the Moon that’s changing, not the Moon itself.

The Moon takes 29 days to orbit around the Earth

The temperature on the Moon varies from super hot to super cold!

When the Sun hits its surface, temperatures can reach up to 127°C.

But when the Sun

‘goes down’, temperatures can decrease to around -153°C

PHASES

Because our Moon is constantly orbiting the Earth, we see the illuminated or lit-up part from different angles throughout the month.

Phases

The moon is about 4.5 billion years old.

  • The moon does not make its own light.
  • It gets its light from the Sun's reflection

Facts

  • The moon has no atmosphere, so it doesn't have weather.
  • There is no wind on the moon.
  • Because of this, the footprints on the moon left by the astronauts will stay for millions of years.
  • The surface of the moon isn't flat, it's rough
  • It has lots of craters.
  • They were formed by meteorites hitting the moon.

On July 20, 1969, Neil Armstrong became the first human to step on the moon

Poems

The Moon Is Shy

O Moon

The Moon looks down and smiles on me.

When I'm in bed;

I throw a good-night kiss to her.

Far-overhead.

She hides her face behind a cloud on high, —

I think the Moon is shy, so very shy!

She comes out only in the dark, —

I wonder why?

She never shines when it is day.

Up in the sky!

Perhaps she does not like the Sun, and

She stays away until she sees him go!

O moon, in the night I've seen you sailing,

And shining so round and low;

You were bright, ah bright, but your light is failing;

You are nothing now but a bow.

You moon! have you done something wrong in heaven,

That God has hidden your face?

I hope if you have, you will be forgiven,

And shine again in your place.

She seems quite friendly with the Stars,

As they pass by;

For I have seen her beam on them

When they are nigh;

So I am sure if she just once would try.

She'd learn to love the Sun as much as I

Baby Moon

The Moon rocks gently to and fro.

Safe in her silvery bed;

And every night the Stars keep watch

Above her pretty head.

In day-time when their lights go out,

The Stars have shut their eyes;

Does little Baby Moon go then

To sleep in other skies?

The Funny Moon

The Man in the Moon

Comes up from the sea.

He winks, and he blinks.

And smiles down on me!

He's jolly, and big.

And rosy, and fat,

The funniest thing

I ever looked at!

And as on his way

The higher he goes,

The paler he gets

And the smaller he grows!

Tides

The rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon and the Sun, and the rotation of the Earth.

Tides

The Moon plays the biggest role

Moon's Force on Earth

While both the Moon and the Sun influence the ocean tides, the Moon plays the biggest role.

Although the Sun's gravitational pull on the Earth is 178 times stronger than the Moon's, the tidal bulges it causes are much smaller.

The tidal forces of the Moon are much stronger than the Sun's because it is so much closer to our planet, causing a much greater variation in the gravitational force from one location to another.

The Sun's gravitational force, on the other hand, varies much less because the Sun is so far away.

Moon's Force

>

Sun's

Force

Bulge: to be swollen or stick out in a round shape

Ocean Bulges

The overall effect of these tidal forces is to “squeeze” the oceans, and produce two tidal bulges on opposite sides of the Earth—one facing the Moon and a slightly smaller one facing away from the Moon

The tide gets high when the sea or ocean is closer to the Moon (as the water is strongly attracted by it).

High and Low Tides

The tide will get low once the water surface is no longer in front of the Moon and attracted by the another force

In theory, there are

two low tides and two high tides a day (Earth’s rotation)

Tides'

Cycle

The highest tides in the world can be found in Canada at the Bay of Fundy.

Highest Tide In The World

Topic 1

Kahoot

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