the earth n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
The Earth PowerPoint Presentation
Download Presentation
The Earth

Loading in 2 Seconds...

play fullscreen
1 / 23

The Earth - PowerPoint PPT Presentation


  • 135 Views
  • Uploaded on

The Earth. By Miss O. 3 rd planet from the Sun . 1 of 4 rocky planets. not a considered a planet at this time. About 150 million kilometers from Sun (93 million miles away). Five Things Make the Earth a “Habitable Planet” in the Universe!.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'The Earth' - badrani


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
the earth

The Earth

By Miss O.

1 of 4 rocky planets
1 of 4 rocky planets

not a considered a planet at this time

five things make the earth a habitable planet in the universe
Five Things Make the Earth a “Habitable Planet” in the Universe!

1. The Earth’s distance from the sun is just right. The sun warms the Earth, and it is not too hot or too cold—it is just right.

about 4 times the diameter of the moon 8 000 miles across
About 4 times the diameter of the moon (8, 000 miles across)

Diameter is the distance across the center of a round object.

slide7

2. The size of the Earth is perfect for maintaining the gravity we need so we don’t float away or get crushed. We can walk and run with ease. Many other planets don’t have the right amount of gravity for us to live there.

Gravity is a force that pulls two objects together.

much smaller than the sun
Much smaller than the sun!

http://www.youtube.com/watch?v=x1w8hKTJ2Co&safety_mode=true&persist_safety_mode=1&safe=active

To scale video

It would take 109 Earths to stretch across the Sun, and it would take over one million Earths to "fill up" the Sun if it were hollow.

Earth

motion rotation earth spinning on its axis 1 rotation 24 hours 1 day
Motion: Rotationearth spinning on its axis 1 rotation = 24 hours (1 day)

http://www.youtube.com/watch?v=lkWyM-M8o0c&safety_mode=true&persist_safety_mode=1&safe=active

slide10

3. The Earth’s tilt on its axis is ideal for life.a. If it were tilted any more, the temperature would swing too much between super-hot summers and super-cold winters.b. If it were tilted any less, too much sunshine all year long would super-heat the equator and too little heat would reach the north and south regions.

An axis is an imaginary line that runs through the center of a planet or other object.

experiment time
Experiment Time!
  • Miss O. will model with a flashlight the seasons.

With a white board, you will write whether the Northern Hemisphere is experiencing winter or summer.

slide17

5. Liquid water is necessary for life to exist. The Earth is the only planet (we know of) with enough liquid water—consider the oceans, lakes, rivers, and streams.

the earth has a protective atmosphere that blocks out most of the sun s harmful rays
The Earth has a protective atmosphere that blocks out most of the sun’s harmful rays.

An atmosphere is the blanket of gases that surrounds a planet or moon.

crust
Crust
  • 0 - 37 miles deep
  • The rock and dirt that you see is just a thin layer.
  • Even the oceans have a layer of crust beneath them.
mantle
Mantle
  • 22 – 1,790 miles deep
  • Thick layer of soft, hot rock
outer core
Outer Core
  • 1,790 – 3,160 miles deep
inner core
Inner Core
  • 3,160–3,954 miles deep