Astronomy Spring Final 2025

Front

Earth is _______ years old. Check the bottom of the scale in brown.

Back

4.6 billion

Front

Did mammals and dinosaurs exist on Earth during some of the same time periods?

Back

Yes

Front

What Era are we currently in? Check out the yellow section.

Back

Cenozoic

Front

What happened during the "Cambrian explosion"?

Back

This is when there was a major increase in the number and diversity of invertebrate species in a short period of time.

Front

Did humans and dinosaurs exist in the same time period?

Back

No, dinosaurs were extinct before humans evolved.

Front

Did the Earth experience global ice ages called Snowball Earths?

Back

No, there were no climate changes.

Front

An asteroid is a small irregular shaped rock that orbits the sun.

Back

True

Front

Are there other planets out there in the universe besides the ones in our solar system?

Back

Yes

Front

What are planets outside our solar system officially called?

Back

Exoplanets

Front

What is the correct order of the planets in the Solar System, starting closest to the Sun?

Back

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune