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Our home, planet Earth
Textbook: Part 2, pp. 6–9
GoalKnow Earth’s place in the Solar System, its shape, the share of water and land; learn to use a globe and a map.
New words
planet · sayyoraglobe · globusmap · xaritaocean · okean
Explanation
Earth is one of eight planets that circle the Sun. It is the third planet from the Sun. Life is known to exist only on Earth. Earth is round; from space it looks like a huge blue ball: blue is water, green and brown are land, white is ice and cloud. Most of Earth’s surface is covered by water: oceans, seas, lakes and rivers. Land consists of continents and islands. A globe is a small model of Earth and a map is a flat picture of its surface. The science that studies Earth is geography.
Worked examples
On a globe blue means water, green means plains and forests, brown means mountains.
On a political map we find Uzbekistan and Tashkent; on a physical map we find mountains and rivers.
Class activity
Game “Where did my finger land?”: use a soft globe or beach ball (pretend it is Earth). A child tosses and catches it and looks at what is under the right index finger: water or land? Repeat 20 times and tally. Usually water wins because Earth has more water.
Practice
1
Which planet from the Sun is Earth?
the third
2
Which is greater on Earth: water or land?
water
3
What is a globe?
a small model of Earth