Planet Earth Flashcards
What did people living around AD 1000 think the shape of the earth was?
People living around AD 1000 thought that the earth was flat?
How do you know that the Earth is round?
I know that the Earth because there are images of Earth being round from space.
Where are the Poles?
The poles are at the top and bottom of the earth
What is the equator?
The equator is around the earth and a distance halfway between the poles
What are the names of the two halves into which the equator divides the earth?
The names of the halves that the equator divides the earth are called the Northern Hemisphere and the Southern Hemisphere.
What causes day and night?
The earth rotates on an axis as it is doing this it passes the sun and moon. The sun shines on one half of the earth and the moon on the other. It takes 24 hours to do a full rotation.
What shape is the orbit of the earth?
The shape of such a orbit is called a ellipse.
What is a year?
The Earth takes about 365 and a fourth days to go around the sun. This length is called a year
How can water cause erosion?
Water is causes erosion by washing away the soil, sand and rock
Why do humans store water in dams?
So they can pump the water to the towns and cities
What is the name of a living thing that is made of nearly all water?
Lettuce is made nearly all of water
What is one with very little water?
Fat
Where is water crucial inside our bodies?
Our blood
What is the definition of the Greenhouse Effect
The Greenhouse Effect is the process by which thermal radiation from a planet’s radiation from a planets surface is absorbed by greenhouse gases and is re-radiated in all direction.
What is the causes of the Greenhouse Effect
Human activities especially the burning of fossil fuels
