Matter
What is matter?
Anything that has mass and takes up space
What is thermal energy?
When 2 or more things are mixed together and are easily separated, they are called what?
A mixture
What are the three phases of matter?
Solid, Liquid, Gas
Something that you can measure or change in an experiment is called what?
A variable
What is volume?
The amount of space an object takes up
What happens to a Solid when heat is added?
It changes to a liquid
What is a mixture that has one thing evenly dissolve into the other?
A solution
Which phase of matter has a definite volume and shape?
Solid
What do we call the variable that is being changed by the scientist in an experiment?
Independent Variable
What is mass?
The amount of matter in an object
What happens to the mass of an object when heat is added and it changes it's state of matter?
(solid->liquid)
Nothing, mass stays the same
Name three different physical properties that allow us to separate mixtures.
color
size
shape
magnetism
physical state
relative density
What is the difference between a liquid and a gas?
What do we call the variable that stays the same?
The constant
All things are made of what?
Matter
Explain what happens to particles when heat is added
They speed up and move further apart
What two things are true about mixtures?
They are made of two or more materials and they keep their own identity
How do you change the phases of matter?
With removing or adding thermal energy
What do we call the variable that the scientist measures?
Dependent Variable
Which physical property is measured in liters?
Volume
Explain what happens to the particles in a liquid when heat is removed.
The particles begin to slow down and move closer together
Name 5 tools that can be used to separate mixtures.
Sieve
Magnet
Heat/Evaporation
Hands/Tweezers
Filter
Density
Describe what the particles of a gas look like.
They are moving all around and are separated, bouncing against each other