Show:
Measurements of Matter
Changes
Energy
Elements
Random
100
What measures matter?
Mass
100
Name the 2 changes
Physical and Chemical
100
What is energy?
the ability to do work or cause change
100
what is an element?
a pure substance that cannot be further broken down by chemical or physical means
100
What is gravity?
the force of attraction between 2 objects
200
volume
mL
200
Is sugar dissolved in water Physical or Chemical?
Physical
200
Does energy take up space?
no
200
name a compound in your body
H2O
200
What is water's density?
1 g/mL
300
Density (liquid)
g/mL
300
is rusting physical or chemical
chemical
300
what is thermal energy?
the total energy of all particles in an object
300
what is a compound?
a pure substance made of 2 or more elements chemically combined in a set ratio
300
Name types of energy
Kinetic, Potential, Chemical, Electromagnetic, Electrical, Thermal, etc...
400
density (solid)
g/cm3
400
What is electrolysis?
use of electricity to break a compound into elements or simpler compounds
400
What is endothermic energy?
a change which energy is taken in
400
what is a mixture?
made of 2 or more substances that are together in the ame place but not chemically combined
400
How do you measure the mass of an object?
A triple beam balance
500
mass
grams
500
Give an example of electrolysis
breaking down water into hydrogen and oxygen
500
what is exothermic energy?
a change which energy is released
500
name an example of a heterogeneous mixture
soil, salad, etc...
500
Name ways to separate a mixture
magnet, filtering, distilling, evaporation, etc...