Intro to Earth's Revolution

​The 2 Reasons for the Seasons

Multiple Choice

It is warmer in the summer because the Earth is closer to the sun.

• True

• False

​Sadly, many people think this is true.

The Earth is actually farthest from Sun in July!

Even though it is 3 million miles farther, that is less than 1%.

Reason #1

Earth is Tilted

Long, long ago, when Earth was young, it is thought that something big hit Earth and knocked it off-kilter. So instead of rotating with its axis straight up and down, it leans over a bit.

​By the way, that big thing that hit Earth is called Theia. It also blasted a big hole in the surface. That big hit sent a huge amount of dust and rubble into orbit. Most scientists think that that rubble, in time, became our Moon.

​​But what caused Earth to tilt?

​https://www.nationalgeographic.org/video/one-strange-rock-seasons/

Reason #2

Earth's Revolution

​https://www.pbslearningmedia.org/resource/buac18-35-sci-ess-earthinorbit/earth-in-orbit/

Multiple Choice

It is warmer in the summer because the Earth is closer to the sun.

• True

• False

Multiple Choice

Earth is tilted as it revolves around the sun which gives us seasons. Which season would it be in North America at letter D?

• Summer

• Spring

• Winter

• Fall

Multiple Choice

The invisible line that passes through the North Pole and the South Pole is called Earth's ____

• axis

• equator

• ecliptic

• prime meridian

Multiple Choice

When the part of the world that you're living in is leaning away from the Sun, its _____

• winter

• spring

• summer

• autumn

Multiple Choice

When the part of the world that you're living in is leaning towards the Sun, its _____

• winter

• spring

• summer

• fall

Multiple Choice

The movement of the Earth around the Sun is called its _____

• revolution

• rotation

• precession

• gyration

Multiple Choice

How long does it take for the Earth to make one full orbit around the Sun?

• one day

• one week

• one month

• one year

Multiple Choice

When the Northern Hemisphere is pointing towards the sun, what season is the Southern Hemisphere?

• Winter

• Spring

• Fall

• Summer

Multiple Choice

What season is it in the northern hemisphere for letter A?

• Winter

• Summer

• Spring

• Fall

Multiple Choice

How long does it take the Earth to make one REVOLUTION around the Sun?

• 12 hours

• 24 hours

• 365 days

• 29.5 days

Multiple Choice

When the Northern Hemisphere of Earth is Leaning away from the Sun, What season is the Southern Hemisphere experiencing?

• Summer

• Winter

• Spring

• Fall

Multiple Choice

What are the reasons for the seasons?

• Earth's tilt and rotation.

• Earth's rotation and revolution.

• Earth's tilt and revolution.

• Earth's tilt and resolution

Multiple Choice

The earth orbits around...

• the sun.

• the moon

• other planets

• the Milky Way

Multiple Choice

What season is the northern hemisphere experiencing in the photo?

• Fall

• Spring

• Winter

• Summer

Multiple Choice

Earth is tilted as it revolves around the sun which gives us seasons. Which season would it be in North America at letter D?

• Summer

• Spring

• Winter

• Fall