Question

[WILL GIVE MEDALS TOO] [WILL FAN ANYONE THAT HELPS] [8th Grade Physical Science]What is the defining feature of a system?



A.


properties that don’t change


B.
collision


C.
interaction


D.
gravitational force

Answer 1

I think its C

Answer 2

@aaronq

Answer 3

yes that is right

Answer 4

:D

Answer 5

haha

Answer 6

Oh and another thing is the nucleus of an atom always in the center

Answer 7

yes it is, it's actually very small though.

If you were to make a comparison, it would be like smaller than a grape while the radius of the atom is a football field

Answer 8

Thanks just wanted to know

Answer 9

no probs