All About Earth
100
What is the Earth mostly made of?
Earth is mostly made of rocks and covered by water.
200
What are some examples of bodies of water on Earth?
Rivers, seas, lakes, and oceans.
300
Why does the horizon appear flat even though the Earth is round?
The horizon looks flat because we can only see a small part of the round Earth.
400
What can humans get from Earth? Name at least two things.
Humans can get food, water, air, and shelter from Earth.
500
Why do we experience day and night on Earth?
Day and night happen because the Earth spins around. When one side of the Earth faces the Sun, it is daytime. When the other side is away from the Sun, it is nighttime.