Land, water, and air Topic

Land, water, and air

Science, Grade 1

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Study Guide Land, water, and air Science, Grade 1

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LAND, WATER AND AIR What Makes Up the Earth? Earth is made of land, water, and air. Earth has more water than land. What Can Change Land? Land on Earth can change. Weathering changes land. Weathering is when rocks break apart and change. Water and ice causes weathering. Weathering can change the size of a rock, the shape of a rock, and even the color of the rock! Weathering can change a rock from being rough to being smooth. © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.

Erosion can also change land. Erosion is when water and wind move rocks and soil. For example, erosion can make a beach smaller. Wind and water can move sand away from a beach. How Do We Use Air? We can’t see air but it is very important to us. We use air to breathe. All living things need air to live. People, plants, and animals all need air to live. The air we breathe in is called oxygen. © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.

How Do We Use Water? All living things need water to live too. Animals and people drink water. Some animals live in water! Plants use water to grow. There are two kinds of water found on Earth: saltwater and freshwater. Animals and people need to drink freshwater in order to live. We can’t drink saltwater. Oceans are made up of saltwater. © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.

Many animals live in saltwater in the ocean. Water Cycle The movement of the Earth’s water is called the water cycle. The water cycle is when water moves from the Earth to the air back to the Earth again. Water is recycled in the Earth’s water cycle. This means water is used over and over again! © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.