The Earth and the Moon TEKS 5.12C How the Earth and Moon are the Same.

The Earth and the Moon

TEKS 5.12C

How the Earth and Moon are the Same

The Earth and the Moon are the same in many ways:

• Both are made of some of the same materials (iron, aluminum, calcium, and silicon)

The Earth and the Moon are the same in many ways:

Barringer Meteor Crater, ArizonaThe moon has many more craters than the Earth!

• They both have craters.

• Most of the craters on the Earth have been affected by weathering and erosion so they are harder to see.

The Manicouagan Crater in northern Canada is one of the oldest impact craters known. The crater itself has been worn away by the passing of glaciers and other erosional processes.

Wolfe Creek is a relatively well-preserved crater that is partly buried under wind blown sand. The crater is situated in the flat desert plains of north-central Australia.

• Since there is no weather or water on the moon to cause erosion of landforms, craters and other things that impact the surface can last for millions of years.

• They have other landforms that are the same, too:

The Earth and the Moon are the same in many ways:

•Plains (called mare on the moon)

•Valleys (called rilles on the moon)

•Mountains

• They also have some other landforms that are the same.

Plains

Valleys

Mountains

The Earth and the Moon are the same in many ways:

• They both rotate on their axis.

The moon rotates at 10 miles an hour. The Earth rotates at 1,000

miles an hour!

The Earth and the Moon are the same in many ways:

• They both revolve around another object.– The Earth revolves around the sun.– The Moon revolves around the Earth.

How the Earth and Moon are Different

The Earth and the Moon are different in many ways:

• The moon does not have these landforms:Oceans

Rivers

Marshes

Glaciers

Beaches

Remember, the moon does not have any forms of water so it could not have any of these landforms!

The Earth and the Moon are different in many ways:

• The Earth has wind. It is caused by the uneven heating of the air and water. The moon has no wind because it has no water and no atmosphere!

The Earth and the Moon are different in many ways:

• Since the moon has no atmosphere, there are also no plants, animals, or water on the moon!

The Earth and the Moon are different in many ways:

• Their revolution also takes different amounts of time.

The moon’s revolution takes approximately 28 days.

The Earth’s revolution takes 365 ¼ days (or one year)!

The Earth and the Moon are different in many ways:

• The pull of gravity is also different on the moon and the Earth. The moon’s pull of gravity is 1/6th of the Earth’s pull of gravity!

Earth Weight:

102 pounds

Moon Weight:

17 pounds

Quiz Time!

Neil Armstrong was the first person to walk on the moon.

If we traveled to the moon today, we could still see his footprint as it was when he made it in 1969.

• Using what you have learned about the moon, tell me why Neil Armstrong’s footprint can last on the moon for millions of years but footprints on a beach may only last for hours.