1. Motion and Variables Exploring Motion Forces Gravity
_________________ and _________________ are _______________.
Forces make things__________________.
When something moves we say it is in __________________.
A force can be used to ________________ motion and _______________.
Gravity
________________ is a pulling _______________ between two objects.
Gravity draws objects ___________________each other.
The _________________ the objects, the _______________ the gravitational force.

2. Controlled Experiments
____________________ Galilei was among the first modern
scientists to perform _______________________________
In a controlled experiment the scientist must pay close attention to
the__________________________.
Variables
There are three kinds of variables in a controlled experiment.
3 Types of Variables:
________________________

3. Independent Variable Dependent Variable Controlled Variables
The _______________________ variable is the variable you ___________.
Example:
______________________________________________________________
Dependent Variable
The ___________________ variable is the what you _____________by doing the investigation.
Example:
_____________________________________________________________
Controlled Variables
The __________________ variables are what must stay the __________ during the investigation.
Example:
_____________________________________________________________