CHAPTER 1 Planet Earth 1 1 PLANET OF

1. 1 PLANET OF LIFE Earth is the third planet from the sun. The

1. 1 PAGE 2 There are three places where organisms can be found. The

1. 1 PAGE 3 One of the reasons organisms can live on earth is

1. 2 EARTH’S LAND WATER The Lithosphere: a layer of rock that covers the

1. 2 PAGE 2 One type is the igneous rock. This is formed when

1. 2 PAGE 3 Another rock is the sedimentary rock. This rock is formed

1. 2 PAGE 4 The last type of rock is the metamorphic rock. This

1. 2 PAGE 5 The hydrosphere: the part of earth where all the water

1. 2 PAGE 6 70% of the world is covered in water. 97% of

1. 2 PAGE 7 Two-thirds of the fresh water exists in frozen glaciers and

1. 2 PAGE 8 surface due to high Not all water is above ground.

1. 3 THE ATMOSPHERE The Atmosphere: an envelope of gases that surrounds earth and

1. 3 PAGE 2 There are four different layers of the atmosphere. There is

1. 3 PAGE 3 troposphere and the next it the stratosphere. The troposphere: the

1. 3 PAGE 4 The next two layers are get up to 2000 degrease

1. 4 THE BIOSPHERE The biosphere: all the parts of the earth that support

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CHAPTER 1 Planet Earth

1. 1 PLANET OF LIFE Earth is the third planet from the sun. The Earth is filled with tons of living organisms. Organisms are living things.

1. 1 PAGE 2 There are three places where organisms can be found. The lithosphere, the hydrosphere, and the atmosphere are the places where they can be found.

1. 1 PAGE 3 One of the reasons organisms can live on earth is that earth has liquid water. Liquid water helps with many thing like heating the earth.

1. 2 EARTH’S LAND WATER The Lithosphere: a layer of rock that covers the earth from 10 to 200 kilometers deep. There are three types of rock that make this up.

1. 2 PAGE 2 One type is the igneous rock. This is formed when liquefied rock is cooled and becomes solid.

1. 2 PAGE 3 Another rock is the sedimentary rock. This rock is formed by the weathering of other rocks and then those sediments get compressed and cemented into rock.

1. 2 PAGE 4 The last type of rock is the metamorphic rock. This rock is formed with lots of heat and pressure.

1. 2 PAGE 5 The hydrosphere: the part of earth where all the water based animals live.

1. 2 PAGE 6 70% of the world is covered in water. 97% of that water is salt water. The salt water contains 35 grams of salt in a liter. The other 3% of the water is fresh water.

1. 2 PAGE 7 Two-thirds of the fresh water exists in frozen glaciers and ice caps and because there is little fresh water, it is a valuable substance.

1. 2 PAGE 8 surface due to high Not all water is above ground. A lot of water is pressure underground. found underground. There are two types of underground water. Aquifer: underground places filled with water and Artesian wells: water flows to the

1. 3 THE ATMOSPHERE The Atmosphere: an envelope of gases that surrounds earth and also holds the air we breath.

1. 3 PAGE 2 There are four different layers of the atmosphere. There is the troposphere, the stratosphere, the mesosphere, and thermosphere.

1. 3 PAGE 3 troposphere and the next it the stratosphere. The troposphere: the layer that holds most of the weather and touches the earth. The stratosphere: reaches the height of 50 km above earth and also contains a gas called The lowest part is the ozone.

1. 3 PAGE 4 The next two layers are get up to 2000 degrease C. the mesosphere and thermosphere. The mesosphere: it extended up to 85 km above earths surface. The thermosphere: the outmost layer of the atmosphere and it can

1. 4 THE BIOSPHERE The biosphere: all the parts of the earth that support and contains life.