Spaceship Earth Unit Review

Spaceship Earth

Unit Review

We have become really familiar with this image! This is a time-lapse of the stars at night

We orbit around the sun and we rotate on the Earth's axis.

Think before you respond: Why do the stars make a circular path in the sky?

Multiple Choice

The stars makes a circular path in the sky because

• The Earth orbits around the sun

• The Earth rotates on its axis

• The stars orbit around us

The earth rotates at 1,000 miles per hour. This means we have 24 hours in a day!

How can we use the sun to tell time?

Open Ended

What can we use to tell time without using a clock?

Multiple Choice

If a day is determined by it making one full spin on its axis, where does a year come from?

• The sun rotating around us

• The earth spinning like a top

• The Earth orbiting around the sun

Multiple Choice

In the winter the days are shorter or longer?

• Shorter

• Longer

Open Ended

Why is are the days shorter in the winter? (Hint; what is happening with the Sun, what is happening with the Earth?)

Lets talk about the moon!

Multiple Choice

The moon orbits

• The Sun

• The Earth

Multiple Choice

Does the moon rotate on a axis?

• Yes

• No!

The moon is so close to the Earth that the Earth's gravity prevents it from rotating.

We only see one side of the moon.

Gravity

Multiple Choice

Gravity is the force that draws objects to the center

• True

• False

Multiple Choice

If there is more gravity will you be able to jump higher or lower?

• Higher

• Lower

Multiple Choice

The moon has less gravity than Earth. Can you jump higher or lower?

• Higher

• Lower

Life in the Universe

Poll

Do you think there are alien plants and animals elsewhere in the universe?

• Yes!

• No way!

Poll

Do you think there is intelligent life elsewhere in the universe

• Aliens are real and they are coming

• We are alone in the universe

The Goldilocks Method refers to other solar systems that might have planets that we could live on. The planet can't be too hot and it can't be too cold

To find a planet that can sustain life we need to find one that has enough sunlight for plants to grow and warm enough to be able to have water

Open Ended

List some other things we need to consider about a planet before we decide to go there. (Hint; think about the rotation, the size, and the kind of planet it is.)