Simple Machines
A combination of two or more simple machines
A compound machine
An educated guess about what will happen in the experiment
A solution is
A combination of a substance and water that cannot be separated. (i.e. lemonade mixture)
The purpose of simple machines is to?
Make doing work easier
The scientific method is
A series of steps scientists use when performing an experiment
A mixture is
A combination of substances that can be separated (ie. cereal, trail mix, etc)
An inclined plane wrapped around a post
A screw
The independent variable is
The variable that "I" change in the experiment
An example of a solution
Lemonade, koolaid, coffee
A pulley
The conclusion of an experiment
Tells us the results and what happened in the experiment. It answers the hypothesis
When certain solids and liquids are mixed with warm water
They dissolve quicker that items in cold water due to particles moving faster
Scissors are a combination of which two simple machines
Lever and wedge
The dependent variable is
The variable that changes as a result of the independent variable
Rocks, aluminum foil, woodchips