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Particle Movement Within Matter
CRCT Prep
Moisture that collects on the outside of
a cold glass results from the process of
A.
B.
C.
D.
evaporation.
condensation.
sublimation.
vaporization.
Why does the outside of a glass of iced tea
sometimes get moist?
A. Water molecules from the tea pass
through the pores in the glass.
B. Water vapor in the air turns to liquid
as it condenses on the cold glass.
C. Glass attracts water droplets that are
floating in the air.
D. Melting ice creates more water than
the glass can hold.
A hot air balloon rises because
A. molecules become lighter when
heated.
B. molecules move faster and farther
apart when heated.
C. molecules are less attracted by
gravity when heated.
D. molecules become charged and
repel each other when heated.
The solid, liquid, and gaseous states of
matter differ from each other in
A. the mass of the individual atoms.
B. the size of the individual atoms.
C. the net electrical charge of the
individual molecules.
D. the average speed of movement of
the individual molecules.
The molecules in a test tube filled with
cold water move more slowly than the
molecules in a large tank of warm water.
What is responsible for this difference in
molecule speed?
A.
B.
C.
D.
pressure
volume
weight
heat
Heat can cause ice to change to liquid
water by
A. filing the spaces between
molecules.
B. causing molecules to move faster
and farther apart.
C. increasing the distance between
electrons within molecules.
D. increasing the attraction between
molecules.
What will happen to the metallic liquid in
a thermometer if the thermometer is
placed in very hot water?
A.
B.
C.
D.
It will go up.
It will go down.
It will disappear.
It will not change.
What will happen to the metallic liquid in
a thermometer if it is placed in very cold
water?
A.
B.
C.
D.
The metallic liquid will go up.
The metallic liquid will go down.
The metallic liquid will disappear.
The metallic liquid will not change.
Oxygen naturally occurs in which
physical state?
A.
B.
C.
D.
solid
liquid
gas
plasma
Gas stations warn customers not to fill
their tanks too much because the tank
could overflow as the day gets warmer.
Which statement best explains why the
gasoline would overflow?
A.
B.
C.
D.
Heat causes liquid to expand.
Heat causes liquid to contract.
Heat causes air to leave the tank.
Heat causes air to flow into the tank.
The circles in the
bottles represent
the same particles
of matter. Which
pattern of particles
represents a gas in
a bottle?
A.
B.
C.
D.
1
2
3
4
After fishing in the ocean, a student left his
fishing gear in the sun to dry. Later, he noticed
that small white crystals had formed on the rod,
reel, and fishing line. Which of these is the best
explanation of what occurred?
A. The water evaporated from the fishing gear
and the sand was attracted to it.
B. The fish that were caught left scales on the
fishing gear.
C. The salt in the ocean water reacted with the
fishing gear and caused it to rust.
D. The water evaporated from the fishing gear,
and salt from the ocean was left behind.
Changes In Matter
CRCT Prep
On Monday, the custodian places an air
freshener in the gym. It is a shiny, pink disk.
Over the next several days, the disk gradually
shrinks. Which of the following is a valid
inference?
A. The disk is undergoing a chemical
change.
B. The disk is undergoing a physical
change.
C. The disk is undergoing both chemical
and physical changes.
D. The disk is undergoing neither a
physical nor chemical changes.
The melting of wax is a physical change, yet the
burning of wax is a chemical change. What is
the essential difference between the physical
change and chemical change of wax in a
burning candle?
A. The burning of wax forms new
compounds, while the melting of wax
does not.
B. A higher temperature is needed to burn
wax than to melt wax.
C. Melted wax can be separated into other
substances, while solid wax cannot.
D. Melted wax is a different phase of
matter than solid wax.
In making a pizza, which process involves
a chemical change?
A.
B.
C.
D.
mixing spices for the sauce
slicing pepperoni for the pizza
spreading cheese on the pizza
baking the dough to form the crust
What is an example of a chemical
change?
A. pepper being ground onto a
salad
B. a match being lit
C. sugar being dissolved in water
D. wood being chopped
Evidence of a chemical change would
be a
A.
B.
C.
D.
melting popsicle.
spinning top.
spilled bucket of water.
rusting car fender.
A different chemical substance is
formed when a
A.
B.
C.
D.
piece of cloth is cut.
cup breaks.
candle burns.
piece of chalk breaks.
Lucy noticed that her coin collection had
begun to tarnish. Some of the metal in the
coins had begun to change color. The
formation of tarnish is most similar to which
of the following changes?
A. shredding a piece of paper into
hundreds of tiny pieces.
B. dropping a dinner plate on the floor.
C. melting ice cubes in a glass of juice.
D. burning a piece of paper to ashes in a
fireplace.
What will happen if you mix vinegar and
baking soda?
A.
B.
C.
D.
It will explode.
Nothing will happen.
It will bubble up rapidly.
It will turn bright red.
Which is an example of a chemical
change?
A.
B.
C.
D.
ice melting
salt crystals being ground to powder
water evaporating
wood burning
Which action would result in a chemical
change?
A.
B.
wood
C.
D.
crumpling several sheets of paper
pounding a nail into a piece of
peeling and slicing a carrot
making blueberry muffins
A chemical change for a piece of metal
would be
A.
B.
C.
D.
being bent in half.
getting cut into two pieces.
being painted.
getting rusty.
The difference between physical changes and
chemical changes is that
A. chemical changes involve energy while
physical changes do not.
B. physical changes involve energy while
chemical changes do not.
C. different kinds of molecules are present
after a physical change but not after a
chemical change.
D. different kinds of molecules are present
after a chemical change but not after a
physical change.
Look carefully at the pictures below.
Which picture shows only a physical
change in the wood?
A.
B.
C.
D.
Which of these will change when a
piece of wood is chopped into smaller
pieces?
A.
B.
C.
D.
the weight of each piece
the hardness of each piece
the color of each piece
the grain of each piece