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2-3 Gravity's Pull

Last updated almost 5 years ago
9 questions

VOCAB

BIG BANG THEORY
Theory that says the universe began as a small point that expanded rapidly about 13.7 billion years ago.

DUST
Tiny particles of matter floating in space; condenses under gravity to form stars and planets.

GAS
This is a form of matter with indefinite shape and volume.

GRAVITY
The force that causes objects with mass to attract one another.

SOLAR SYSTEM
The Sun together with the group of planets and other celestial bodies that are held by its gravitational attraction and revolve around it

GALAXY
A large grouping of stars in space.
2

8a - WAIT UNTIL I SHOW YOU TODAY'S LAB TO ANSWER THIS QUESTION.
What do the iron filings represent?

1

8b - WAIT UNTIL I SHOW YOU THE NEXT STEP IN OUR LAB BEFORE YOU ANSWER
What does this force represent?

1

8c - What force do you think took over after the initial explosion?

1
2

17a - What does the magnet represent in this model? Why do we have to use a magnet instead of the actual force?

1

17b - What is the object we created by gathering iron in the center of the pan?

1

17c - What does this new clump of iron represent?

2

17d - Why are we using a circular motion when gathering the iron together? What does this represent?

2

WHEN INSTRUCTED - draw your "BEFORE" and "AFTER" pictures here.