Bob Anderson, Gisela Winckler, Martin Fleisher Lamont-Doherty Earth Observatory
Earth martin
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Transcript of Earth martin
WHATS THE EARTH?
The Earth is the third planet from the sun and the moon is its satellite. The moon
orbits the Earth. The Earth is called a
celestial body because it is a planet. This means that it is a
natural object in the sky. The earth orbits the Sun like all the
planets. It is a rocky planet.
The Earth
The earth rotates on its axis and this rotation is why we have day and night.It takes twenty-four hours to rotate on its axis.
The earths axis is tilted.When the earth orbits the Sun, one hemisphere receives more light and heat than the other. This causes different climates on Earth and different seasons. When it’s winter in the northern hemispere, it’s summer in the southern hemisphere and when it’s summer in the southern hemisphere, it’s winter in the northern hemisphere.
The Earth’s rotation and orbit
We use maps and globes to show the Earth
Our planet
Globes show the earth as a sphere. They look like the real Earth.
The directions on maps and globes are N for north, S for south, E for east and W for west.
Maps show the Earth as flat. We can see length and height. We can fold a map and easily take it with us.
The Equator divides the earth into the northern hemisphere and the southern hemisphere
EQUATOR
Lines of latitude go horizontally around the Earth.
Lines of latitude
Lines of longitude go vertically around the Earth from the north pole to the south pole.
Lines of longitude
THERE ARE DIFFERENT TYPES OF MAPS
MAPS