Scientists made a computer model of Earth with no life at all! They wanted to see what our planet would look like. The big surprise? Earth would still have water and warm weather, but no air to breathe!
Study these words before reading the article. Click the audio button to hear pronunciation.
A very big round thing in space, like Earth or Mars.
“Earth is the planet we live on.”
To make a picture in your head of something.
“Can you imagine a world with no trees?”
A very big area of water on Earth.
“Fish live in the ocean.”
A little bit hot, but not too much.
“The sun makes the day warm.”
To take air in and out of your body.
“We need oxygen to breathe.”
Something that matters a lot.
“Water is important for all living things.”
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Click on any underlined word to see its definition. Highlighted words are from the vocabulary section.
What if Earth had no animals? No trees? No people? Scientists asked this big question! They used a computer to imagine it. They wanted to see a world with no life.
The computer showed something cool! Earth would still have oceans. It would still be warm. But the air would be very different. There would be no oxygen to breathe!
Plants and trees make our oxygen. Without them, the air changes a lot! Living things are very important for Earth. They help make our planet a good home!
Test your understanding of the article with these multiple-choice questions.
What did the scientists use to study Earth with no life?
What would Earth still have without life?
What would be missing from the air?
What makes the oxygen we breathe?
Answer these comprehension questions about the article.
What did the scientists use to imagine Earth with no life?
What would Earth still have with no life?
What would be missing from the air?
What makes the oxygen we breathe?
Why are living things important for Earth?
Share your opinions on these open-ended questions.
What is your favorite animal on Earth?
Can you imagine a planet with no water?
What would you do if you visited a new planet?
What living thing do you think is the most important?
If you could make a new planet, what would you put on it?
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