Energy can be described in many ways. from the list below, what is the best defenition of energy? a. melting, freezing, or evaporating b. anything that brings about change c. the ability to create a new substance d. the ability to do work

Imagine that you’re getting ready to move to a new city. when people move, they are influenced by push factors and pull factors, and you have many reasons for your move. which of the following factors is an example of a pull factor? a. wanting to move because you’ve found a great new school somewhere new b. needing to move because there are not enough resources in your old hometown c. being forced to move because your old home is gone d. having to move because there are no jobs in your current hometown

How did planetesmals form planets? a. they broke apart into smaller chunks. b. they collided and stuck together. c. they cooled and pulled ice together. d. they began to rotate.

What is the independent variable in this investigation? mass volume sample number substance density