|Applying the brakes on a bike produces a force called ____.
|A hypothesis is an educated ____.
|A seesaw is an example of a ____.
|The ability to do work or to cause change is ____.
|The process of a gas changing to a liquid is ____.
|All magnets (including the Earth) have a north and a south ____.
|There are about 2.5 centimeters (cm) in one ____.
|A ____ is about 2.2 pounds (lb).