WorksheetsWhat's the Matter? Unit Assessment Review 2019-2020
Total questions: 30
Worksheet time: 15mins
Rust is an example of a ________
physical reaction
chemical reaction
Which term refers to the amount of space taken up by an object?
temperature
solution
mass
volume
Which is the best description of what happens during a chemical reaction/change?
A new substance is formed during a chemical change.
A substance goes through a chemical change.
The physical properties of a substance are changed.
The type of matter in the substance remains unchanged.
If enough heat is taken away from a container of water, what will happen to the water?
It will become a solid.
It will turn into a gas.
It will begin to boil.
It will increase in weight.
Which term means “a combination of two or more substances that keep their identities”?
mixture
matter
solution
compound
Which term or phrase best describes what happens when a tomato rots?
conservation of mass
chemical change
physical change
formation of a compound
An example of a liquid turning into a gas is
a chocolate candy bar melting
ice cream dripping.
water boiling.
steam turning into ice.
The states of matter differ in many ways, including shape and volume. The following three figures show the particles in a solid, a liquid, and a gas.
Which of the following correctly identifies the state of matter?
3: gas
1: solid
2: solid
2: liquid
Which term refers to the amount of matter in an object?
volume
solution
mass
temperature
A cup holds 125 grams of liquid water and 100 grams of ice. What is a reasonable mass for the water in the cup after the ice melts?
175 grams
230 grams
225 grams
215 grams
How does water change as it evaporates?
Its mass and volume decrease.
Its mass and volume increase.
Its mass remains unchanged. Its volume increases.
Its mass increases. Its volume remains unchanged.
Riley and Jill are studying what happens to matter when it changes state. They found this list of statements. Which of these statements is true?
When matter changes state, its boiling point might also change.
When matter changes state, its mass changes.
When matter changes state, the space between particles in the matter stays the same.
When matter changes state, its mass remains the same.
There are different characteristics for each of the states of matter. Which statement describes a difference between liquids and solids?
Solids take on the shape of their containers and liquids maintain their own shapes.
Temperature can change a solid to a liquid, but it cannot change a liquid to a solid.
The particles in a solid are much closer together than the particles in a liquid.
Solids have a definite volume and liquids do not have a definite volume.
Peter places six balls of modeling clay on one side of a balance. He places a plastic cup on the other side. It takes 41 plastic cubes to balance the modeling clay. He then removes the clay, shapes it into a dinosaur, and puts it back on the balance.
How many cubes will he most likely need to put into the cup to balance the dinosaur?
35 cubes
38 cubes
47 cubes
41 cubes
Which is an example of a chemical change/reaction?
paper being burned
metal being melted
a board being cut in half
water being boiled
John puts an ice cube in a beaker and it melts. This is a good example of
a physical change.
a chemical change.
an experiment.
an analysis.
Vinegar is an acid that bubbles when it interacts with calcite. Which mineral contains calcite?
sandstone
limestone
granite
gneiss
Four students are dissolving sugar in water to perform an experiment. Each student dissolved 1 tsp of sugar in 1 cup of hot water and stirred the water a different number of times. The students recorded how long it took for the sugar to dissolve in each cup. The results are shown in the following table.
Which of the following happened as the number of stirs increased?
The amount of sugar dissolved decreased.
The amount of sugar dissolved increased.
The speed of dissolving decreased.
The speed of dissolving increased.
Most matter expands when the temperature increases and contracts when the temperature decreases. Which of the following substances expands as it freezes?
iron
air
salt
water
If you dissolved a lot of salt in some water in a large flat dish and put the dish in bright sunlight on a hot day, what would be left in the dish after a long time?
the same salty water as before
dry salt
water with no salt
nothing
Which object would be most likely to rust?
a glass marble
an iron nail
a plastic comb
a paper cup
When materials combine to form new compounds it is a chemical change/reaction. Which example(s) is/are chemical change(s)?
baking powder fizzing
ice melting
glow sticks
sugar cube dissolving
Which answer makes a correct statement?
Physical change only changes the size.
Physical change only changes the color.
Physical changes change the matter into something totally different.
Physical changes begin and end with the same matter.
Which examples below are physical changes?
burning wood
shredding paper
silver tarnishing
evaporating water
Which are examples of chemical changes/reactions?
burning wood
shredded paper
rusting nail
silver tarnishing
Which are examples of physical changes?
snowman melting
fireworks
playing with playdoh
getting a haircut
Which is an example of a chemical change/reaction?
candle wax melting
candle wick burning
glowstick
water freezing
Kym has set up an experiment with four beakers, each filled with 100 mL of water at four different temperatures. She plans to time how long it takes for 1 tsp of sugar to dissolve at each temperature. To determine if there is a trend, she will add the sugar to each beaker of water without stirring, wait for it to dissolve, and then plot her results on a graph. Which of the following graphs would most likely show the results of Kym’s experiment?
What type of change would occur if paper was burned?
physical
chemical
no change
The graph shows the changes in state of water at sea level. Based on the graph, which of the following is true?
Liquid water boils at temperatures between 0 °C and 100 °C.
Solid water melts, forming liquid water, at temperatures below 0 °C.
Water vapor condenses into liquid water when temperatures drop below 100 °C.
Liquid water freezes, forming solid water, at temperatures greater than
0 °C.
