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Worksheets5th Grade Physical and Chemical Changes
Total questions: 52
Worksheet time: 1hrs 28mins
Name
Class
Date
1.
What is the change of state from a solid to a gas?
a)
transpiration
b)
evaporation
c)
sublimation
d)
thermal contraction
2.
Which of these is not an example of a physical change?
a)
chopping an onion
b)
frying an egg
c)
melting snow
d)
boiling water
3.
Steel is an example of
a)
alloy
b)
solution
c)
colloid
d)
suspension
4.
What kind of properties can only be observed when a substance changes into a different substance?
a)
physical properties
b)
chemical properties
c)
liquid properties
d)
real properties
5.
Is bleaching your hair a physical or chemical change?
a)
physical
b)
chemical
6.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
7.
A change in the size, shape, or state of matter.
a)
chemical change
b)
physical change
c)
chemical reaction
d)
electron change
8.
Acids are what range on the pH scale?
a)
0-14
b)
0-6.99
c)
7
d)
7.1-14
9.
Bases are what range on the pH scale?
a)
0-6.99
b)
7
c)
7.1-14
d)
0-14
10.
When found in food, acids are ________
a)
Sour
b)
Bitter
c)
Salty
d)
Slippery
11.
When found in food, bases are _______.
a)
Sour
b)
Bitter
c)
Salty
d)
Soggy
12.
What color does acid turn litmus paper?
a)
It turns litmus paper purple.
b)
It turns red litmus paper blue.
c)
It turns blue litmus paper blue.
d)
It turns blue litmus paper red.
13.
Which of these substances is acidic?
a)
tap water
b)
lemon
c)
ammonia
d)
baking soda
14.
What might happen if you mixed a strong acid with an equally strong base?
a)
You would see an explosive chemical reaction.
b)
The acid would destroy the base.
c)
The base would destroy the acid.
d)
You'd wind up with a pH-neutral substance.
15.
What is the measure of how much a substance dissolves in a given volume?
a)
atom
b)
element
c)
solububble
d)
solubility
16.
Lemonade is a special mixture called a
a)
substance
b)
solution
c)
plasma
d)
ingredient
17.
A fruit salad is a
a)
solution
b)
mixture
18.
What is a neutralization reaction?
a)
any synthesis reaction
b)
any decomposition reaction
c)
a reaction between an acid and a base
19.
Which of the following pH's represent bases (alkaline solutions)?
a)
9.4
b)
7
c)
5.89
d)
1.2
20.
Which of the following describes a battery?
a)
Acid
b)
Base
21.
What is the pH of water?
a)
11
b)
4
c)
7
22.
Which of the following is most likely to be basic:
a)
Lemon juice
b)
Vinegar
c)
Laundry detergent
d)
Coke
23.
According to Arrhenius theory, what gives acids its properties?
a)
H+ ion
b)
valence electrons
c)
bonds
d)
OH- ion
24.
OH- is called the:
a)
hydrate ion
b)
hydrogen ion
c)
hydronium ion
d)
hydroxide ion
25.
Substance that shows change in colour when brought in contact with acids and base
a)
instructors
b)
neutralizer
c)
indicators
d)
salts
26.
Bases feel
a)
rough
b)
thick
c)
slippery
d)
dry
27.
If you neutralize an acid with a base what will be produced?
a)
Sugar and water
b)
Sugar and salt
c)
Salt and water
d)
Water
28.
Water compound
a)
NaCl
b)
H2O
c)
Protein
d)
CaCO
29.
Is salt (NaCI) a compound or a element
a)
Compound
b)
element
30.
What are the products in the following chemical equation?
2H2 + O2 --> 2H2O
2H2 + O2 --> 2H2O
a)
H2
b)
O2
c)
2H2 + O2
d)
2H2O
31.
What are the reactants in the following chemical equation?
2H2 + O2 --> 2H2O
2H2 + O2 --> 2H2O
a)
H2
b)
O2
c)
2H2 + O2
d)
2H2O
32.
How many ELEMENTS are in the compound H2O
a)
1
b)
2
c)
3
d)
4
33.
What indicates a chemical reaction occurred?
a)
Heat or Light is released
heat or light is produced
heat or light is produced
b)
gas (bubbles) produced
c)
color change
d)
all of the above
34.
A candle wick burning is an example of a _________________________
a)
physical reaction
b)
condensation
c)
neutrons
d)
chemical reaction
35.
_______________ is an example of both a color change and new substance produced from a chemical change with oxygen and metal.
a)
shredded paper
b)
rust (iron oxide)
c)
wood chips
d)
melted wax
36.
Law of conservation of mass states that
a)
matter is created
b)
matter is destroyed
c)
matter is neither created nor destroyed
d)
matter does not change
37.
water is heated and changed to steam
a)
physical change
b)
chemical change
38.
Bases are bitter and found all around us. Which of the following is a base?
a)
Soap
b)
Vinegar
c)
Mustard
d)
Ketchup
39.
What happens in ALL chemical changes?
a)
Change in state of matter
b)
A new substance is formed
c)
Bubbles are produced
d)
An explosion
40.
Boiling water
a)
Chemical Change
b)
Physical Change
41.
Glass bottle that is shattered
a)
Chemical Change
b)
Physical Change
42.
Which is an example of a solution?
a)
Chex Mix
b)
Mixed fruit
c)
Juice
d)
milk and cereal
43.
What happens when I mix koolaid powder in water?
a)
It melts
b)
It boils
c)
It dissolves
d)
It evaporates
44.
To separate a mixture of salt and water what separation tool/method is used?
a)
Filter
b)
Screen
c)
Magnet
d)
Evaporation
45.
What is a substance that is dissolved in another substance?
a)
solution
b)
solute
c)
solvent
d)
compound
46.
What is H2SO4
made up of?
made up of?
a)
2 hydrogen, 1 sulfur, 4 oxygen
b)
1 hydrogen, 2 sulfur, 4 oxygen
c)
2 hydrogen & 4 sodium
d)
1 hydrogen & 6 sodium
47.
A pencil is sharpened. Physical or chemical change?
a)
Physical change
b)
Chemical change
48.
What is the boiling point of water
a)
0 C
b)
100 F
c)
50 C
d)
100 C
49.
What is happening at the boiling point?
a)
liquid to gas
b)
gas to liquid
c)
solid to liquid
d)
liquid to solid
50.
What is happening at freezing point?
a)
gas to liquid
b)
solid to liquid
c)
liquid to solid
d)
liquid to gas
51.
Do all matter have the same boiling, melting, and freezing points
a)
Yes
b)
No
52.
When does evaporation happen?
a)
gas to liquid
b)
liquid to solid
c)
solid to liquid
d)
liquid to gas
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