WorksheetsMidterm Review
Total questions: 30
Worksheet time: 15mins
Which 2 properties are used to determine density?
mass and length
length and mass
mass and volume
weight and volume
What is the formula for determining density?
D = Mass/Volume
D = Mass + Volume
D = Mass x Volume
Something that has high density will
sink quickly
barely sink
barely float
float well
This picture shows the process of
melting
boiling
freezing
condensing
The motion of particles in a liquid is ______.
more than in a gas
more than in a solid
same as in a gas
same as in a solid
In which of the following do the molecules have the LEAST kinetic energy?
a cup of warm water
a pan of hot oil
a pitcher of lemonade
a frozen popsicle
If candle wax dripped off a candle and formed a puddle but then later, the wax hardens, which properties of the candle wax changed?
Only the state of matter changed from a solid to a liquid.
BOTH the state of matter and a physical change.
BOTH the state of matter and a chemical change.
Only the chemical properties changed.
Which best explains the physical changes of melting ice cream?
The molecules of ice cream begin to vibrate faster and slip past each other
The molecules of ice cream begin to melt
The ice cream molecules dissolve in the heat from the sun.
The molecules of ice cream slow down and move closer together.
Which particles touch each other but are free to slide by each other?
Solid
Liquid
Gas
Ice forms on the surface of lakes. Why is this possible?
Ice is less dense than water.
Ice is more dense than water.
The organisms in the lakes keep the water stirred up.
Thermal vents help the ice to float.
What is the phase change of a liquid to a gas?
freezing
melting
boiling
Which law/ principle does this image represent?
Archimedes Principle
Charles's Law
Boyle's Law
Which law/ principle does this image represent?
Archimedes Principle
Charles's Law
Boyle's Law
Which law/ principle does this image represent?
Archimedes Principle
Charles's Law
Boyle's Law
According to the ____, matter is neither created nor destroyed during a chemical change.
Law of Conservation of Mass
Boyle's Law
Charles's Law
Tyndall Effect
Which of the following is not an element?
Hydrogen
Oxygen
Carbon
Water
An example of a physical change is
getting a hair cut
the ball is red
when a mixture gives off an odor
when a mixture gives off heat
All of these are chemical changes from the lab except which of these?
The balloon expands
the mixture bubbles
the mixture gives off heat
the mixture has a smell/ odor
If heat is given off, we call it this kind of reaction
Endothermic Reaction
Exothermic Reaction
What is CO2?
An element
a compound
a liquid
a mixture
What is CO2 made up of?
Calcium and Oxygen
Chlorine and Oxygen
Calcium and Osmium
Carbon and Oxygen
A model of CO2 would look like:
What is the main cause of any change in a state of matter?
adding or taking away forces
adding or removing heat energy
the amount of pressure
changes in gravity
When a thermometer reads 37 degrees, this shows
there is a lot of potential energy
that it's going to rain outside
the measure of how fast the atoms are moving
the number of atoms moving
According to the Law of Conservation of Mass, if 2 atoms of Hydrogen are used as a reactant, how many atoms of Hydrogen must be part of the product?
2
0
1
4
What did Tom Brady and his Patriots coach say was the reason the footballs were deflated when they was asked?
The temperature outside was cold, so the volume of the air in the balls increased.
The temperature outside was cold, so the volume of the air in the balls decreased.
someone forgot to fill them before the game
What happens to the water in a puddle when it disappears?
boiling
sublimation
condesation
evaporation
Letter A is pointing to which part of the atom?
electron
proton
neutron
nucleus
Sugar forms when Carbon, Oxygen and Hydrogen combine. Which bond is this?
Ionic Bond
Covalent Bond
What type of chemical reaction is shown by the equation H2O2 → H2 + O2
Decomposition
Synthesis
