Key Terms
Changes in Matter
Density
Energy
Volume
100
Study of properties of matter and how matter changes.
Chemistry
100
Are combustion and tarnishing physical or chemical change?
Chemical change
100
Mass divided by volume.
Formula for density
100
Measure of the average energy of random motion of particles of matter.
Temperature
100
The amount of space matter occupies.
Volume
200
The measurement of the amount of matter in an object.
Mass
200
When sugar dissolves in a glass of water, is that a change in state or in form?
Change in form
200
How can you tell if something is more or less dense than water?
Place it in water and if it floats, then it is less dense. But if it sinks, it is more dense.
200
Ability to do work or cause change.
Energy
200
Length: 10 cm Width: 3 Height: 2 What is the volume?
60 cm cubed
300
The measure of the force of gravity on you.
Weight
300
A change in matter that produces one or more new substances.
Chemical change
300
Something has a mass of 5 grams and a volume of 10 cm cubed. What is the density?
0.5 g/cm cubed
300
Change in which energy is released.
Exothermic change
300
Liter, milliliter, and cubic centimeter.
Common units of volume
400
A single kind of matter that is pure, meaning it always has a specific makeup and a specific set of properties.
Substance
400
Is crushing aluminum changing it's state or form?
Change in form
400
Something has a mass of 200 grams and a volume of 250 cm cubed. What is the density?
0.8 g/cm cubed
400
Total energy of all of the particles in an object
Thermal energy
400
Length: 20 Width: 5 Height: 4 What is the volume?
400 cm cubed
500
A mixture in which you can see the different parts.
Heterogeneous mixture
500
Is bending, crushing, breaking, and chopping physical or chemical change?
Physical change
500
Something has a mass of 5,000 grams and a volume of 50 cm cubed. What is the density?
100 g/cm cubed
500
Change in which energy is taken in.
Endothermic change
500
Length: 0.5 cm Width: 10 cm Height: 2 cm What is the volume?
10 cm cubed
M
e
n
u