Unit 5: Space Systems

A force of attraction between objects that is due to their masses.

• Lunar Phases

• Universe

• Gravity

• Revolution

An eclipse that occurs when the Earth comes directly between the sun and the full moon.

• Eclipse of the Heart

• Solar

• Lunar

• Total

Tiny chunks of rock of varying sizes that orbit the sun.

• Asteriods

• Meteors

• Comets

• Gibbous

What causes the seasons?

• The temperature changing during different times of the year

• The tilt of the earth and the distance from the sun causes the seasons.

• The shape of the earth’s orbit.

• How close you are to the equator

How does the mass of an object effect it’s gravitational pull?

• The objects mass has little to do with the gravitational pull.

• The smaller the objects mass the stronger the gravitational pull.

• The larger the objects mass the stronger the gravitational pull.

• The larger the objects mass the weaker the gravitational pull.

We know the following is true about the earth’s orbit around the sun

• The amount of time it takes to orbit the sun can vary each year

• It takes 24 hours for the earth to orbit the sun

• The earth is always the same distance away from the sun

• The Earth's orbit is elliptical shaped not circular

Which of the following is the new moon?

• Phase 1

• Phase 8

• Phase 4

• Phase 5

Which of the following shows the Waxing Gibbous?

• Phase 2

• Phase 4

• Phase 8

• Phase 6

Which of the following shows a Waning Crescent?

• Phase 5

• Phase 8

• Phase 3

• Phase 7

Which of the following shows a Waxing Crescent?

• Phase 3

• Phase 4

• Phase 5

• Phase 2