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Worksheets5th Period Physical/Chemical Change Test
Total questions: 100
Worksheet time: 1hrs 19mins
Name
Class
Date
1.
Which of the following is an example of a chemical change?
a)
Iodine is added to corn starch and a color change occured
b)
Water boils to form a gas
c)
You mix sugar and salt together
d)
You dissolve sugar in water
2.
Which of the following statements show a chemical change might have occurred?
a)
Changes state
b)
A gas given off
c)
Change in mass
d)
Change in volume
3.
Which is an example of a chemical change?
a)
mixing oil and water
b)
Freeze water
c)
Smash a pumpkin
d)
Rust forms
4.
A gas is given off when boiling water and when burning wood, why is burning wood a chemical change and boiling water not a chemical change
a)
Burning wood produces a new substance but water does not
b)
Burning wood makes faster molecules than boiling water
c)
Burning wood produces a chemical and water is not
d)
Boiling water is an element and burning wood is a compound
5.
Which of the following is an example of a physical change?
a)
Cleaning a penny with vinegar and salt
b)
cutting a piece of wood in half
c)
Burning a piece of paper
d)
combining phenol red and baking soda
6.
Which of the following is an example of a chemical change?
a)
Cutting a piece of wood in half
b)
Melting butter
c)
Digesting food
d)
Freezing water
7.
Which of the following is the product of a chemical change?
a)
Smoke from a fire
b)
Ice
c)
sawdust
d)
sugar water
8.
What statement below lists the different ways we know a chemical change has taken place?
a)
change in state, odor, gas, precipitate
b)
volume change, odor, gas, heat difference
c)
mass change, odor, gas, heat difference
d)
Gas, odor, heat difference, color change, precipitate
9.
Which of the following statements describe a physical change
a)
precipitate, color change, heat change
b)
gas, odor, heat change
c)
change in mass, change in volume, change in state
d)
gas, color change, heat change
10.
what is the definition of chemical change?
a)
any change that results in the formation of new chemical substances.
b)
changing clothes
c)
matter cannot be created or destroyed, only change form
d)
changes affecting the form of a chemical substance, but not its chemical composition.
11.
what is the definition of physical change?
a)
any change that results in the formation of new chemical substances.
b)
rusting
c)
changes affecting the form of a chemical substance, but not its chemical composition.
d)
any property that is measurable, whose value describes a state of a physical system
12.
what is burning?
a)
physical change
b)
physical property
c)
chemical change
d)
chemical property
13.
which one is a physical change?
a)
evaporation
b)
energy
c)
sublimation
d)
evaporation and sublimation
14.
what is condensing?
a)
physical property
b)
chemical property
c)
chemical change
d)
physical change
15.
what is digestion?
a)
body function
b)
chemical change
c)
physical change
16.
One cup of water is left outside for two days when it was checked there was only half a cup left. What happened?
a)
evaporation; chemical change
b)
condensation; physical change
c)
evaporation; physical change
d)
condensation; chemical change
17.
what happens when water freezes?
a)
ice is formed; chemical property
b)
cold water is formed; physical change
c)
ice is formed; physical change
d)
cold water is formed; chemical change
18.
melting is a chemical change
a)
true
b)
false
19.
Which of the following is NOT an example of a physical change?
a)
crumpled paper
b)
pencil sharpening
c)
shrunken clothing
d)
sour milk
20.
Kim puts an ice cube in a beaker and it melts. This is a good example of:
a)
a physical change.
b)
a chemical change.
c)
an experiment.
d)
an analysis.
21.
Photosynthesis is an example of a
a)
physical change
b)
chemical change
22.
When you break a cracker into pieces it is a
a)
Chemical change
b)
Physical change
c)
Chemical Weathering
d)
Physical Weathering
23.
Is glass breaking a chemical or phyiscal change?
a)
chemical
b)
physical
24.
Is hammering wood together to build a house a chemical or physical change?
a)
chemical
b)
physical
25.
Salt dissolves in water
a)
Physical change
b)
Chemical change
26.
Hydrochloric acid reacts with magnesium to produce hydrogen gas
a)
Physical change
b)
Chemical change
27.
A piece of copper is cut in half
a)
physical change
b)
chemical change
28.
a sugar cube is ground up
a)
physical change
b)
chemical change
29.
iron rusts.
a)
physical change
b)
chemical change
30.
ethyl alcohol evaporates
a)
physical change
b)
chemical change
31.
milk sours (goes bad)
a)
physical change
b)
chemical change
32.
sugar dissolves in water
a)
physical change
b)
chemical change
33.
sodium and potassium react violently with water
a)
physical change
b)
chemical change
34.
grass grows on a lawn
a)
physical change
b)
chemical change
35.
ethyl alcohol boils at 79 degrees celsius
a)
physical change
b)
chemical change
36.
water freezes at 0 degrees celsius
a)
physical change
b)
chemical change
37.
fireworks explode
a)
physical change
b)
chemical change
38.
alka-seltzer gives off carbon dioxide when added to water
a)
physical change
b)
chemical change
39.
clouds form in the sky
a)
physical change
b)
chemical change
40.
What will weigh more when a chemical change is complete? The reactants before the chemical reaction, or the product after the reaction is complete?
a)
They both will weigh the same
b)
The product always weighs more than the reactant
c)
The reactant will weigh more than the product
d)
They both will loose mass after the reaction
41.
What is the Law of Conservation of mass?
a)
Mass is created in a chemical reaction
b)
Mass is created in a physical change
c)
New chemicals formed from a chemical reaction have a larger overall mass than the original reactants
d)
Mass is never created or destroyed
42.
Since gasses weigh nothing, when they are produced in a reaction they do not have to be accounted for.
a)
True
b)
False
43.
Measure of the amount of matter
a)
mass
b)
volume
c)
weight
d)
density
44.
A precipitate is a
a)
liquid that forms when two solids are reacted
b)
a solid that forms when two liquids are mixed
c)
a gas that forms when vinegar and baking soda react
d)
a change of color in a solution
45.
If reaction starts with 20g of reactants it should produce
a)
a total of 40g of products
b)
a total of 10g of products
c)
a total of 80 g of products
d)
a total of 20g of products
46.
Which of the following describes the law of conservation of mass?
a)
In a reaction, atoms are created or destroyed.
b)
In a reaction, atoms are not lost or made.
c)
In a reaction, the mass of the product may be more or less than the reactants.
d)
In a reaction, mass never stays the same.
47.
What will weigh more when a chemical change is complete? The reactants before the chemical reaction, or the product after the reaction is complete?
a)
They both will weigh the same
b)
The product always weighs more than the reactant
c)
The reactant will weigh more than the product
d)
They both will loose mass after the reaction
48.
Matter can not be created nor destroyed: it can only be
a)
Destroyed a little bit
b)
Invisible
c)
Transformed, changed
d)
None of the above
49.
Is melting butter for popcorn a chemical or physical change?
a)
chemical
b)
physical
50.
A solid piece of chocolate is melted and changed to liquid form. Which property of the piece of chocolate will remain the same?
a)
Texture
b)
Temperature
c)
Shape
d)
Mass
51.
Which of the following is NOT an example of a physical change?
a)
crumpled paper
b)
pencil sharpening
c)
shrunken clothing
d)
rust
52.
Freezing Juice?
a)
Physical Change
b)
Chemical Change
53.
Change in color is a physical change.
a)
True
b)
False
54.
A change where one or more new substances are created.
a)
Physical Change
b)
Chemical Change
55.
Change in density is a physical change.
a)
True
b)
False
56.
Fizzing, foaming, and burning are all examples of
a)
Chemical change
b)
Physical change
57.
Ms. Ferguson added 6 g of liquid wax to a cup that weighed 12 g. What is the weight of the cup after the wax solidifies?
a)
6 g
b)
18 g
c)
12 g
d)
24 g
58.
A mixture is the result of a physical change because...
a)
The parts can be separated
b)
A new substance is made
c)
There is a chemical reaction
d)
One part of the mixture disappears
59.
Which of these does NOT happen during a chemical change?
a)
Atomic bonds are formed or break apart
b)
New substance(s) are formed with different chemical properties
c)
The number of atoms in the reaction stays the same
d)
The chemical properties of the beginning substance(s) are the same as those of the end product(s)
60.
Which of these is a result of a physical change?
a)
A new odor
b)
A new gas
c)
A new chemical substance
d)
A solution
61.
Which best describes a mixture?
a)
atoms combined into molecules
b)
substances in the liquid state
c)
a blend of two or more substances
d)
elements with chemical bonds between them
62.
FRYING AN EGG is an example of a:
a)
Chemical change
b)
Physical change
63.
SLICING PIZZA is an example of a:
a)
Chemical change
b)
Physical change
64.
A change to the state of matter WITHOUT creating a new substance is evidence of a:
a)
Chemical Change
b)
Physical Change
65.
LIGHT BEING RELEASED is evidence of a:
a)
Chemical Change
b)
Physical Change
66.
CREATION OF A NEW SUBSTANCE is evidence of a:
a)
Chemical Change
b)
Physical Change
67.
BREAKING SOMETHING is an example of a:
a)
Chemical change
b)
Physical change
68.
SIZE CHANGE is evidence of a:
a)
Chemical Change
b)
Physical Change
69.
STATE OF MATTER CHANGE is evidence of a:
a)
Chemical Change
b)
Physical Change
70.
BOILING SOMETHING is an example of a:
a)
Chemical change
b)
Physical change
71.
A NAIL RUSTING is an example of a:
a)
Chemical change
b)
Physical change
72.
CUTTING SOMETHING is an example of a:
a)
Chemical change
b)
Physical change
73.
AN UNUSUAL SMELL is evidence of a:
a)
Chemical Change
b)
Physical Change
74.
FIREWORKS EXPLODING is an example of a:
a)
Chemical change
b)
Physical change
75.
FRUIT TURNING BROWN is an example of a:
a)
Chemical change
b)
Physical change
76.
WOOD BURNING is an example of a:
a)
Chemical change
b)
Physical change
77.
BENDING SOMETHING is an example of a:
a)
Chemical change
b)
Physical change
78.
GAS BEING RELEASED (bubbles) is evidence of a:
a)
Chemical Change
b)
Physical Change
79.
SHAPE CHANGE is evidence of a:
a)
Chemical Change
b)
Physical Change
80.
LIGHTING A MATCH is an example of a:
a)
Chemical change
b)
Physical change
81.
TEARING SOMETHING is an example of a:
a)
Chemical change
b)
Physical change
82.
BAKING A CAKE is an example of a:
a)
Chemical change
b)
Physical change
83.
FREEZING SOMETHING is an example of a:
a)
Chemical change
b)
Physical change
84.
EGGS ROTTING is an example of a:
a)
Chemical change
b)
Physical change
85.
When there is a CHEMICAL CHANGE, the process:
a)
CAN BE reversed
b)
CANNOT be reversed
86.
Ken noticed that water droplets had formed on the outside of his glass of iced tea. Which of the following best describes the process of water droplets forming?
a)
The droplets have gone through a chemical change.
b)
The droplets have gone through a physical change.
c)
The droplets have formed new atoms.
d)
The droplets have changed their structures.
87.
Which of the following is the best evidence that butter has gone through a chemical change?
a)
The butter spreads easily on toast.
b)
The butter melts into liquid.
c)
The butter smells like it is spoiled.
d)
The butter was mixed with cookie dough.
88.
Which of the following are the smallest units that make up soil?
a)
pebbles
b)
atoms
c)
dirt
d)
minerals
89.
Which question should one ask when trying to decide if a sample is a compound?
a)
Does the sample contain atoms?
b)
What color is the sample?
c)
Are different elements bonded together?
d)
How much does the sample weigh?
90.
Which of the following is the best example of a physical change?
a)
burning natural gas
b)
cooking meat
c)
dissolving sugar
d)
microwaving potatoes
91.
Which involves a chemical change?
a)
an orange falling from a tree
b)
a banana ripening on the counter
c)
a watermelon being sliced with a knife
d)
an apple being chilled in the refrigerator
92.
Which best describes the process of an ice cube melting?
a)
The ice becomes molecules.
b)
The ice changes into an element
c)
The ice goes through a physical change.
d)
The ice replaces some of the atoms in its molecules.
93.
Which of the following best describes water?
a)
mixture
b)
atom
c)
compound
d)
element
94.
Which of the following best describes a compound?
a)
substances that are either a solid, liquid, or gas
b)
substances that are broken down by physical forces
c)
substances that dissolve in water and other liquids
d)
substances that have two or more elements bonded together
95.
The diagram below shows changes happening to water in a specially shaped bottle.
What changes did the water undergo?
What changes did the water undergo?
a)
melting and then freezing
b)
freezing and then evaporation
c)
condensation and then melting
d)
evaporation and then condensation
96.
A group of students investigated physical and chemical changes using paper. The students recorded their observations in a table.
Which student correctly recorded all the changes that took place?
Which student correctly recorded all the changes that took place?
a)
Student 1
b)
Student 2
c)
Student 3
d)
Student 4
97.
Photosynthesis is an example of a
a)
physical change
b)
chemical change
98.
Green bananas turning yellow on their own as they ripen.
a)
Chemical Change
b)
Physical Change
99.
One cup of water is left outside for two days when it was checked there was only half a cup left. What happened?
a)
evaporation; chemical change
b)
condensation; physical change
c)
evaporation; physical change
d)
condensation; chemical change
100.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
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