A combination of ingredients whose physical properties stay the same when mixed. Easy to separate.
Mixture
A combination of ingredients whose physical properties change when mixed. Usually requires evaporation to separate.
Solution
Anything that has mass and takes up space.
Matter
The physical forms of matter, which include solid, liquid, and gas.
States of Matter
The amount of matter in an object.
Mass
A measure of the force of gravity on an object.
Weight
The measure of the amount of matter in an object.
Density
The force of attraction or repulsion of magnetic materials.
Magnetism
The ability to dissolve in another substance.
Solubility
A material that allows heat and electricity to easily pass through it.
Conductor
A material that does not allow heat or electricity to pass through it easily.
Insulator
A factor that can change in an experiment.
Variable
What we see, touch, taste, smell, or hear.
Observation
To make an educated guess based on evidence within a picture, text, chart, or graph.
Inference
A push or pull.
Force
A force that resists the motion of two surfaces sliding against each other.
Frictional Force
An attractive force that acts between any two objects.
Gravitational Force