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

Fill in the Blank

During an Equinox, about how many hours of daylight will they receive in Dallas, Texas?

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