🔬 ScienceLevel 1Lesson 9
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The Earth's Land, Air, and Water

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Learning Objectives

  • 1Name the three main parts of the Earth — land, air, and water — describe each one
  • 2Sort examples correctly into the right group
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Mini Lesson

Look out your window. You might see fields, roads, rivers, and sky. Everything on our planet can be sorted into three main parts: land, air, and water.

Land

  • Land is the solid ground beneath our feet — it covers about 30% of the Earth.
  • Land includes mountains, valleys, deserts, forests, fields, and cities.
  • Most plants grow in soil on the land, and many animals live on it.
  • Example: A mountain, a forest, and a sandy desert are all land.

Water

  • Water covers about 70% of the Earth — most of it is the salty ocean.
  • Fresh water is found in rivers, lakes, ponds, and underground.
  • All living things need water to survive, and many animals live in it.

Air

  • Air surrounds the entire Earth like a blanket — we call this the atmosphere.
  • Air is invisible but real — you can feel it as wind.
  • All living things breathe air. Without it, nothing could survive on Earth.
A simple Earth scene showing land, water, and air with labelsA landscape showing sky with clouds at the top labeled Air, ocean on the left labeled Water, and hills and mountains on the right labeled Land.💨 Air🌊 Water🏔️ LandThree fact cards about land, water, and airThree cards each with a key fact: Land covers 30 percent, Water covers 70 percent, Air surrounds the whole Earth.Key facts about Earth🏔️Land30% ofthe Earthmountainsdesertsforestscities🌊Water70% ofthe Earthoceansriverslakesponds💨Airsurroundsall Earthinvisiblewe breathewind ismoving air
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Ask yourself: "Is it solid ground? That is land. Is it liquid you can drink or swim in? That is water. Is it the invisible stuff we breathe? That is air!"

Vocabulary
Land
The solid ground we walk one.g. Mountains and forests are on land.
Water
The liquid in rivers, lakes, and oceanse.g. Fish swim in water.
Air
The invisible mix of gases all around us that we breathee.g. We breathe air every second.
Atmosphere
The layer of air that wraps around the whole Earthe.g. The atmosphere keeps us safe from space.
Earth
The planet we live one.g. Earth has land, water, and air.
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