Days and Years

Days and Years

Multiple Choice

What causes day and night?

• The sun moving

• The Earth moving

The Earth doesn't just orbit around the Sun – it also spins, or rotates.

Imagine a line that runs through the Earth. This line is called an axis. The Earth rotates on its axis from west to east.

What causes day and night?

Multiple Choice

The Earth turns on its axis from:

• West to East

• East to West

• North to South

• South to North

The time taken for any planet to rotate once on its axis is a day.

On Earth, a day is 24 hours because this is how long it takes for our planet to rotate once.

A year is the time it takes Earth to complete one full orbit around the Sun - approximately 365.25 days.

Days vs Years

Multiple Choice

Recall why a day on Earth is 24 hours long.

• It's the time the Sun takes to rotate once on its axis

• It's the time the Earth takes to rotate once on its axis

• It's the time the Earth takes to orbit once around the Sun

• It's the time the Sun takes to orbit once around the Earth

Multiple Choice

Select whether the following statement is true or false:

"Orbiting" means the same thing as "rotating".

• True

• False

Multiple Choice

At any given time, the percentage of the Earth experiencing night is the same.

Identify the percentage of the Earth that is experiencing night right now.

• 20%

• 50%

• 70%

• 100%

Match

Complete the sentences...

• The Earth does one complete rotation...

• When part of the Earth faces toward the Sun...

• When part of the Earth faces away from the Sun...

Every 24 hours

it will be day time in that place

it will be night time in that place

• Every 24 hours

• it will be day time in that place

• it will be night time in that place

Multiple Choice

As Earth continues to rotate and turn, the Sun seems to move as it sets in the ______.

• East
• South
• North
• West

Multiple Choice

The Earth spins on an invisible line called an ________?

• Equator

• Axel

• Axis

• Orbit

Multiple Choice

Object spinning on its axis. 

• revolution
• rotation

Multiple Choice

Object orbiting another object. 

• revolution 
• rotation

Labeling

Label the diagram

Drag labels to their correct position on the image

Night

Day

Open Ended

If the Earth rotated faster, explain what would happen to the length of a day.