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Biblioteka

What if There Were No Seasons?

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Posljednje ažuriranje almost 2 years ago
9

You will use an interactive tool to explore day and night.

Click the link to enter the interactive tool; you have 10 minutes.

https://www.scootle.edu.au/ec/viewing/L696/index.html

You will now create an interactive revolution and rotation sheet. Follow the directions carefully. Step 7 states you need to fill in notes; they are below. When you have completed your interactive, you need to get a signature from your teacher.

Revolution Notes

Rotation Notes

BE SURE TO CLICK SUBMIT WHEN YOU HAVE COMPLETED THIS ASSIGNMENT.

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Pitanje 9
9.

What if There Were No Seasons?

What causes the seasons to change? Seasons

are caused by a 23.5 degree tilt of the Earth’s

axis during its revolution.

The tilt is a slant of the Earth’s axis, a 23.5

degrees from the axis.

The axis is the imaginary line that extends

from the North Pole to the South Pole and is

the center of the Earth’s rotation.

The Earth revolves around the sun. A

revolution is when one object moves around

another. It takes the Earth 365.25 days to

revolve around the sun.

The Earth also rotates or spins on its axis.

The rotation of the Earth causes day and night.

With the 23.5 ̊tilt, one hemisphere tilted more

towards the sun than the other. If you live in

North America, which is in the northern

hemisphere, during the summer the northern

hemisphere is tilted towards the sun and

receives more direct sunlight.

A hemisphere is half of a sphere and Earth is

divided into the northern and southern

hemisphere.

What would happen if the Earth didn’t tilt? We

wouldn’t have any seasons. It would be a

pretty different world that we live in. Our crops

wouldn’t grow correctly. If we didn’t have

crops, we couldn’t eat!

Our Earth would also get colder and colder the

further you get from the equator. We couldn’t

live in some of the locations we currently live

in. If we had to live closer to the equator, we

wouldn’t have as much space to live, and our

populations would be lower. They would have

to be!

And what would life be like closer to the

equator? It would be even hotter and more

humid than it is now. Studies have shown that

we might have more diseases because disease

thrives in warmer climates.

All life on earth would be completely different

without seasons.

Pitanje 1
1.

The seasons are

caused by

Pitanje 2
2.

What would be another

good title for this

passage?

Pitanje 3
3.

Why would Earth be the

warmest near the equator

if there were no seasons?

Pitanje 4
4.

What is the

imaginary line that

extends from the North

Pole to the South Pole

and is the center of the

Earth’s rotation?

Pitanje 5
5.

What is half

of the Earth’s sphere

(e.g. northern/southern

or eastern/western)?

Pitanje 6
6.

What is the

movement of one object

around another, for

example the Earth

around the Sun

Pitanje 7
7.

the spin of the Earth on its axis

Pitanje 8
8.

the slant

of the Earth’s axis, a

23.5 degrees from

vertical

Using the vocabulary words (bolded words) from the above passage, fill in the blanks.

As we stand on the Earth there are things happening that we don’t even know about it. Depending on where we live, our location is in one half of the sphere of Earth (for example, northern/southern), called a . This sphere of Earth has an imaginary line going from the North Pole to the South Pole around which the Earth spins, or , called the Earth’s . This axis is at a of 23.5º. At the same time that the Earth is spinning, it is also moving around the Sun. This movement of one object around another is called a .