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WorksheetsPhysical and Chemical Properties and Changes
Total questions: 40
Worksheet time: 51mins
Name
Class
Date
1.
Two jars are placed inside an insulated box. One jar contains ice water and the other contains hot soup. What will happen to the two liquids?
a)
Both the hot soup and the ice water will gain heat.
b)
Both the hot soup and the ice water will lose heat.
c)
The hot soup will gain heat, and the ice water will lose heat.
d)
The hot soup will lose heat, and the ice water will gain heat.
2.
Which of the following best explains why the end of a spoon sticking out of a cup of hot water also gets hot?
a)
The hot water causes a chemical reaction to take place in the spoon.
b)
The hot water heats the air surrounding the upper part of the spoon.
c)
The heat from the hot water is conducted to the spoon handle.
d)
The hot water causes a physical change in the spoon handle.
3.
Paper burning is a __________________ change.
a)
physical
b)
chemical
4.
Dry ice (solid carbon dioxide) turning into carbon dioxide gas is a
a)
physical change
b)
chemical change
5.
Which of the following occurs when a liquid becomes a gas?
a)
The particles give off energy.
b)
The particles break away from one another.
c)
The particles move closer together.
d)
The particles slow down.
6.
If you poured two liquids (that do not mix completely) into a beaker, how could you tell which one is the densest liquid?
a)
The liquid that is floating on top is the densest liquid.
b)
The liquid that settles to the bottom is the densest liquid.
c)
The liquid with the red color is the densest liquid.
d)
There is no way to tell which liquid is densest from the description.
7.
Which of these phrases describes the results of a chemical change?
a)
charred wood, ash, and smoke
b)
salt dissolving in water
c)
gold nuggets melting
d)
a dented car door
8.
An iron nail rusting is a _______________ change. The ________________ property of reactivity explains the iron’s ability to form a new substance.
a)
physical, physical
b)
physical, chemical
c)
chemical, chemical
d)
chemical, physical
9.
Dissolving Kool-Aid into water is an example of a
a)
physical change
b)
chemical change
10.
Which of the following is a chemical property of matter?
a)
solubility
b)
volume
c)
density
d)
flammability
11.
Salt can dissolve in water. Which of the following physical properties explains this?
a)
density
b)
solubility
c)
state
d)
malleability
12.
You are given two jars, each of which contains an unknown substance. You are asked to determine if the substances are different from one another or if each jar contains the same substance. What should you do to complete this task?
a)
Compare the appearances of the substances. If the substances look the same, then they are the same.
b)
Compare only some of the physical properties of the substances. If the substances have the same density, then they are the same.
c)
Compare both the physical and the chemical properties of the substances. If the substances perform the same in a variety of tests, then they are the same.
d)
Compare the physical states of the substances. If the substances are in the same state, then they are the same.
13.
Which statement describes evidence of a chemical reaction?
a)
ice melting
b)
water boiling
c)
lighting a match
d)
grape juice freezing
14.
Where would you place FREEZING POINT in the Venn diagram?
a)
a
b)
b
c)
c
d)
d
15.
Step 1: Grind substance into a fine powder with a mortar and pestle.
Step 2: Add the substance to a beaker containing 300 mL of water.
Step 3: The mixture bubbles and a gas is emitted.
The substance's ability to be ground into smaller pieces in step 1 would be classified in which area of the Venn diagram?
Step 2: Add the substance to a beaker containing 300 mL of water.
Step 3: The mixture bubbles and a gas is emitted.
The substance's ability to be ground into smaller pieces in step 1 would be classified in which area of the Venn diagram?
a)
a
b)
b
c)
c
d)
d
16.
All the warning signs at the gas pump indicate that gasoline is highly combustible. Where would combustibility be placed in the diagram?
a)
a
b)
b
c)
c
d)
d
17.
The following changes (melting wax, evaporating gasoline, freezing water) are all examples of
a)
nuclear changes.
b)
chemical changes.
c)
physical changes.
d)
a. energy consumption.
18.
Which of these BEST describes a physical change?
a)
fireworks explode
b)
a log in the campfire turns into ashes
c)
rust forms on your bicycle
d)
the amount of water in a pan decreases
19.
Which property is an example of a chemical property?
a)
the ability to burn
b)
the ability to dissolve
c)
the ability to melt
d)
the ability to evaporate
20.
The density of a piece of gold jewelry is often used to determine its purity. Density is what kind of property?
a)
chemical
b)
colligative
c)
extrinsic
d)
physical
21.
You are hired as a scrap metal dealer. A customer wants to sell you a piece of precious scrap metal. You know it is one of these common metals. The metal has a low density and low melting point. What is the metal?
a)
copper
b)
nickel
c)
gold
d)
zinc
22.
During Mr. Nye's science class, students were expected to identify various substances using physical properties they could easily measure. Mr. Nye gave each of the five groups a green, metal cube and asked them to identify what the cube was made of. Matt's cube, after 5 trials, had an average density of 7.40 g/cm3 . His group's cube was made of
a)
aluminum
b)
gold
c)
nickel
d)
zinc
23.
A cube of each metal, in the table, is provided on a laboratory table. Each cube has the same volume of 10 cm3. Which cube would have the largest mass?
a)
copper
b)
nickel
c)
silver
d)
zinc
24.
This table displays
a)
price values of the metals.
b)
chemical properties of the metals.
c)
physical properties of the metals.
d)
corrosive resistance of the metals.
25.
Using this density column, list the substances in order from MOST dense to LEAST dense.
a)
Syrup, Oil, Water, Air
b)
Water, Syrup, Oil, Air
c)
a. Syrup, Water, Oil, Air
d)
a. Air, Oil, Water, Syrup
26.
Consider the picture of the jar holding oil, syrup, and water. It would be easy to pour off the oil to separate from both the syrup and water because the liquids have different
a)
densities
b)
masses
c)
temperatures
d)
volumes
27.
Color, shape, texture, and size are _____________ properties of matter.
a)
chemical
b)
liquid
c)
physical
d)
solid
28.
Brad and Juan conducted several tests to determine the properties of silver metal. They noted that is was white, and conducted both electricity and heat. They computed the density to be 10.49 g/cm3. Silver did not react with water but in nitric acid, gas was released. What evidence supports a chemical change in the silver?
a)
Silver conducts electricity.
b)
Silver reacts with nitric acid to produce a gas.
c)
The color of silver at room temperature is white.
d)
Silver conducted heat and as the temperature increased, became more malleable.
29.
During science lab, some students added small pieces of magnesium ribbon to 10 mL of hydrochloric acid. They noticed that bubbles formed, the test tube got hot, and the magnesium disappeared. Which is a sign that a chemical reaction has taken place in this experiment?
a)
change in odor
b)
release of heat energy
c)
change in color
d)
disappearance of magnesium
30.
A student takes four samples of a white crystalline solid and places each in a well plate. On top of each sample, she carefully places 20 drops of mystery liquids A, B, C and D. Her results for each well are:
The solid dissolves quickly in liquid A.
The solid remains unchanged with the addition of liquid B.
The white solid remains, but dissolves very slowly in liquid C.
When liquid D is added, fizzing occurs and the well becomes warmer.
In which well does a chemical change occur?
The solid dissolves quickly in liquid A.
The solid remains unchanged with the addition of liquid B.
The white solid remains, but dissolves very slowly in liquid C.
When liquid D is added, fizzing occurs and the well becomes warmer.
In which well does a chemical change occur?
a)
a
b)
b
c)
c
d)
d
31.
Use the image to determine which statement correctly describes one of the changes?
a)
Picture I shows a chemical change, because a new substance is formed.
b)
Picture II shows a chemical change, because a new substance is formed.
c)
Picture I shows a chemical change, because the same substance changes form.
d)
Picture II shows a chemical change, because the same substance changes form.
32.
Water freezes and melts at 0°C. Melting point is what kind of property?
a)
chemical
b)
colligative
c)
extensive
d)
physical
33.
Heat of combustion is defined as the energy released when a compound is completely combusted in oxygen. This is a ___________ property of matter.
a)
chemical
b)
colligative
c)
extensive
d)
physical
34.
Which physical property would be the same as a substance’s melting point?
a)
solubility
b)
boiling point
c)
specific heat
d)
freezing point
35.
Carol accidentally dropped a container of salt, sodium chloride into a container of a dark gray metal. Carol knows that the salt will dissolve in water, but she is afraid to pour water over the mixture. On a hunch, she takes a magnet and runs it through the mixture. The gray substance is attracted to the magnet and she is able to separate the two solids. What is the gray substance in the container?
a)
iron
b)
copper
c)
aluminum
d)
sodium chloride
36.
Consider the paragraph below. What is one chemical property of helium?
Helium balloons! Fun at a party. But do you know one chemical property of helium? Helium is an odorless, colorless gas at room temperature. It is less dense than air. That's why helium balloons float. It is a non-reactive gas, a member of the Noble gas family. Its melting point is -272.2 °C and its boiling point is -268.93 °C.
Helium balloons! Fun at a party. But do you know one chemical property of helium? Helium is an odorless, colorless gas at room temperature. It is less dense than air. That's why helium balloons float. It is a non-reactive gas, a member of the Noble gas family. Its melting point is -272.2 °C and its boiling point is -268.93 °C.
a)
colorless
b)
non-reactive
c)
less dense than air
d)
boiling point is -268.93
37.
Metals can be recognized by many common properties. Two of these are that metals are malleable and ductile. These properties are what kind of properties?
a)
chemical
b)
colligative
c)
extensive
d)
physical
38.
You have 10 milliliters of three liquids. Each one is clear and colorless. When all three are put into a container, they separate into three different layers. Which liquid has the highest mass?
a)
The liquid on the top has the highest mass.
b)
The liquid on the bottom has the highest mass.
c)
The liquid in the middle has the highest mass.
d)
All three have the same mass since they have equal volumes.
39.
Which of the following would be evidence that a chemical change has occurred?
a)
change in size
b)
change in state
c)
new substance formed
d)
change in shape
40.
The ___________ of copper allows the material to be worked into copper wire for use in electrical wiring.
a)
flammability
b)
ductility
c)
reactivity
d)
solubility
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