If two objects have the same volume but one has a greater mass, the one with greater mass
a)Has a lower density
b) Has a higher density
c) Will float
d) Will sink
100
Baking bread
What is chemical change
100
Brass
What is an alloy, a special type of homogeneous mixture
100
Orderly state of matter, very little particle movement
What is solid
100
Why is a state change plateaued on a heating curve
All of the heat being added is making the substance change state.
200
If you cut a wooden block in half, each half would have
a) Half the density of the original piece
b) Twice the density of the original piece
c) The same density as the original piece
d) No density at all
200
Dissolving salt in water
What is physical change
200
Air
What is a homogeneous mixture or solution
200
On a heating curve that goes through all states of matter, it would be located on the second slanted area of the graph
What is a liquid
200
On the diagonals of a heating curve, how many states of matter are present?
Just one, this is where the substances are gaining energy to transition from one state to another
300
If two objects have the same mass but different volumes
a) The one with the larger volume has the lower density
b) They must have the same density
c) The one with the larger volume has the higher density
d) The one with the larger volume is twice as dense
300
boiling water to make steam
What is physical change
300
Sugar
What is a compound
300
Takes the shape of its container and has a definite volume
What is a liquid
300
The term we use for adding energy into a system ( boiling, melting would use this term.
What is endothermic?
400
Density is a characteristic property (or intensive property) of a substance. This means that the density of water
a) Changes depending on the volume
b) Stays the same regardless of the volume
c) Is greater for a greater mass of water
d) Is less for a smaller mass of water
400
Tarnishing silver spoons
What is chemical change
400
Chicken noodle soup
What is a heterogeneous mixture
400
Widely spread apart particles, high kinetic energy, fills entire container so do defined volume
What is a gas
400
The term we use for releasing energy from a system ( condensing , freezing would use this term.
What is exothermic
500
An object should float in a liquid if it is
a) More dense than the liquid
b) Less dense than the liquid
c) Lighter than metal
d) Shaped like a ball
500
Ozone (O3)
What is a molecule? Technically, not a compound, since it only contains Oxygen atoms. It is a form of oxygen, the element, that is unstable.
500
O2
What is an element ( oxygen is a diatomic element - also called a molecule since it has 2 of the same atom - it cannot be called a compound because it does not have two different atoms
500
its volume can me measured without being in a container
What is a solid
500
What is the change of state from solid to gas called ?