Question 1

What is Earth?

Accepted Answer

Earth is our home planet where we live. It's a big round ball that travels around the Sun along with other planets.

Question 2

How old is Earth?

Accepted Answer

Earth is about 4.5 billion years old. That's super, super old, much older than any person or animal!

Question 3

How did Earth form?

Accepted Answer

A long, long time ago, bits of dust and rocks in space came together to form Earth. It was really hot at first, like a big ball of fire.

Question 4

What is Earth's surface like?

Accepted Answer

Earth’s surface is made up of land and water. There are mountains, oceans, forests, and deserts.

Question 5

Why do we have day and night?

Accepted Answer

We have day and night because Earth spins like a top. When our side of Earth faces the Sun, it's day, and when it turns away, it's night.

Question 6

What causes the seasons?

Accepted Answer

Seasons change because Earth tilts as it goes around the Sun. This makes different parts of Earth warm up or cool down at different times of the year.

Question 7

Why is Earth known as the 'Blue Planet'?

Accepted Answer

Earth is called the 'Blue Planet' because a lot of its surface is covered in water. From space, it looks mostly blue!

Question 8

What are continents?

Accepted Answer

Continents are really big pieces of land. There are seven continents on Earth, like North America and Africa.

Question 9

What was Earth like millions of years ago?

Accepted Answer

Millions of years ago, Earth looked a lot different. There were giant dinosaurs, and the continents were in different places.

Question 10

How have plants and animals changed over time?

Accepted Answer

Plants and animals have changed a lot over time to survive. Some look very different from their ancient relatives.

Question 11

What is a fossil?

Accepted Answer

A fossil is a trace or remains of something that lived long ago. It can be a bone, a leaf print, or even a footprint stuck in rock.

Question 12

How do scientists learn about Earth’s past?

Accepted Answer

Scientists study rocks, fossils, and other clues to learn about Earth's past. They use these clues like pieces of a puzzle to understand what happened long ago.

Question 13

What is an Ice Age?

Accepted Answer

An Ice Age is a time when much of Earth was covered in ice and snow. During these times, it was much colder than it is now.

Question 14

What are tectonic plates?

Accepted Answer

Tectonic plates are big pieces of Earth's surface that move around slowly. They can cause earthquakes and help form mountains.

Question 15

What is the atmosphere?

Accepted Answer

The atmosphere is a layer of gases that surrounds Earth. It’s like a big blanket of air that protects us and helps us breathe.

Question 16

How do volcanoes change Earth?

Accepted Answer

Volcanoes can change Earth's surface by erupting and spilling out lava. This lava cools and hardens to create new land.

Question 17

Why is the Earth's core hot?

Accepted Answer

The Earth's core is hot from heat left over when Earth formed and from stuff inside Earth that releases heat. It's like keeping warm inside a furnace.

Question 18

How does the ocean affect Earth?

Accepted Answer

The ocean helps keep Earth’s climate balanced and provides homes for many animals. It also gives us fresh water and food.

Question 19

What is a meteorite?

Accepted Answer

A meteorite is a piece of rock or metal from space that lands on Earth. It can create craters where it hits.

Question 20

Why is it important to take care of Earth?

Accepted Answer

Taking care of Earth keeps it healthy and beautiful for us and future generations. By protecting our planet, we make sure we have clean air, water, and a safe place to live.

The Journey of Planet Earth Through Time - 20 FAQs Explained Simply