Eratosthenes

Eratosthenes proved the Earth was round before Gallileo.

• True

• False

How did Eratosthenes notice the Earth was round?

• He walked across Earth.

• The shadows around him and the obelisks were different in other places.

• He got up on the pyramids and saw a curve in the horizon.

• Aliens helped him.

What did he do in order to calculate the distance between the obelisks?

• He walked from Alexandria to Syene.

• He swam down the Nile river.

• He hired a man to walk the distance between the obelisks and count his steps.

Tags

CCSS.2.MD.A.2

The Earth is flat.

• True

• False

• Why is this even a question?

Eratosthenes came to this discovery with the help of complex tools.

• True

• False

The Golden Record contains...

(Tick the things that are inside the Golden Record.

• Music

• Images

• Questions

• Sounds of Earth

• Samples

The United States president has a speech in the Golden Record.

• True

• False

Do you think aliens will find the Golden Record?

• Yes

• No

• Future humans will find it again.