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# Earth, Moon, Sun

By Peyton Raypholtz

# Section 1 Earth in Space

## How does Earth move in space?

Earth moves in space in two major ways, rotation and revolution.

Rotation:The imaginary line that passes through Earth's center is Earths axis. The spinning on earths axis is called rotation.

Revolution: Earth travels around the sun. The movement of one object around another is called revolution.

## What causes the cycle of seasons on earth?

There are seasons on earth because Earth's axis is tilted as it revolves around the sun.

June

The north end of Earth's axis is tilted toward the sun so it is summer in the northern hemisphere and not in the southern hemisphere.

December

The south end of Earth's axis is tilted toward the sun so it is summer in the southern hemisphere and not in the northern hemisphere.

# Section 2 Gravity and Motion

## What determines the strength of the force of gravity between two objects?

The Strength of the force of gravity between two objects depend on the mass of the objects and the distance

Mass: Higher the mass more the pull of gravity. lower the mass means less pull of gravity

Distance: Higher distance equals lesser pull and lower distance higher the pull of gravity.

## What two factors combine to keep the moon and Earth in orbit?

Inertia and gravity together keep the Earth in orbit around the sun.

Inertia: the tendency of an object to resist a change in motion.

# Section 3 Phases, Eclipses and Tides

## What causes the phases of the moon?

The changing positions of the moon, Earth and sun causes the phases of the moon.

## What are solar and lunar eclipses?

Solar: When the moon passes directly between Earth and the sun.

Solar Eclipse

Lunar: When the earth blocks sunlight from reaching the moon.

Lunar Eclipse

## What causes the tides?

Tides: caused mainly by the differences in how much the moon's gravity pulls on different parts of the earth.

# Section 4 Earth's moon

## What features  are on the moon's surface?

Craters: were caused by the impact of meteoroids.

Maria: hardened rock formed from huge lava flows that occurred between 3 and 4 billion years ago.

Highlands: The light-colored features that cover much of the moons surface.

## What are some characteristics of the moon?

The moon is dry and airless. compared to Earth, the moon is small and has large variations in its surface temperature.

## How did the Moon form?

Scientists Theorize  that when the earth was very young a planet sized object collided with earth. Material from the object and Earth's other layers was injected into Earths orbit forming a ring. Gravity caused these materials to combine to form the moon.

# Moon Walking Contest, Come all

14 people are going
Invite Friends
14 going0 maybe0 no
Klimkowski 2 years ago

I'll bring my glove!

GO'Malley 2 years ago

Peyton, are you competing, because you do a mean moon walk, it'll be pretty hard to beat!

Turner (+5) 2 years ago

i cant really moon walk jk not at all

Eastman 2 years ago
Wasinski 2 years ago
Elly Alarie (+1) 2 years ago
raypholtz (+1) Organizer

### Comment Stream

2 years ago
1

I like that you showed pictures of the eclipses. It really helped clarify what they were. Good job!

2 years ago
1

I like all the pictures, it helped explain more of your text.

2 years ago
0

The way that you set up your tackk is really cool

2 years ago
0

Great Job!