What is this?

What is this?

What is this?

What is this?

Hypatia ____ in Egypt two thousand years ago.

Many many years ago, astronomers ____ many new things at the sky.

Long time ago, the Mayan people ____ that the earth was flat.

In Many years ago, the people of China ____ that the moon is round.

The people of ancient Rome ____ a calendar long time ago.

What's the irregular past simple of "write"?

What's the irregular past simple of "see"?

What's the irregular past simple of "make"?

What's the irregular past simple of "give"?

What's the irregular past simple of "take"?

In the day, we can see the sun. The sun is a star. It's a nearest star to our planet. It is the only star we can see in the day.

Question: What's the nearest star to earth?

Clouds are made of lots of tiny drops of water. Water comes down from the clouds as rain or snow.

Question: Does the snow come down from the cloud?

Nobody can count all the stars in our sky. There are too many. When it is very dark, you can see more stars.

It means the stars are ___________ .

What is the meaning of astronomer?

What do we call "a big word made of two little words"?