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Unit 2: Solutions & Changes in Matter

Total questions: 131

Worksheet time: 3hrs 46mins

Name
Class
Date
1.
The substance being dissolved in a solution.
a)
sands
b)
solute
c)
solvent
d)
alloy
2.
The substance in which a solute is dissolved
a)
sands
b)
solvent
c)
alloy
d)
negative particles
3.
A solution is a ___________mixture.
a)
heterogeneous
b)
homogeneous
c)
concentration
d)
ionic
4.
Solutions are composed of __________ .
a)
salts and solutes
b)
solvents and salts
c)
solutes and alloys
d)
solutes and solvents
5.
Saturated, unsaturated, and supersaturated solutions are defined by how much __________ can dissolve in a solvent
a)
sugar
b)
liquid
c)
solution
d)
solute
6.
When water is added to a solution it is called a ______________
a)
dilution
b)
concentration
c)
heterogeneous solution
d)
dissociation
7.

You can make a solution more concentrated by adding more __________.

a)
solute
b)
solvent
c)
water
d)

solution

8.

In a sample of salt water, NaCl (salt) would be considered the ______.

a)
Solution
b)
Solute
c)
Solvent
d)
Solvation
9.
When one of the parts of the solution is water we call it _________. 
a)
water stuff 
b)
water mixture 
c)
aqua-man
d)
aqueous 
10.
Vinegar
a)
Heterogeneous
b)
Homogeneous
11.
What type of mixture is this?
a)

homogeneous mixture

b)
chemical
c)
heterogeneous mixture 
d)
solid mix
12.
Italian Salad Dressing is a . . .
a)
heterogeneous mixture
b)
homogeneous mixture
c)
Pure Substance
d)
Compound
13.
Chicken soup is an example of what kind of substance?
a)

homogeneous mixture

b)
solution
c)
heterogeneous mixture
d)
compound
14.
Sugar water
a)
Heterogeneous
b)
Homogeneous
15.
When one of the parts of the solution is water we call it _________. 
a)
water stuff 
b)
water mixture 
c)
aqua-man
d)
aqueous 
16.
If we are making Kool-aid with sugar, Kool-aid powder, and water, which part is the solvent?
a)
water
b)
powder
c)
sugar
d)
powder and sugar
17.

Avery is conducting a science experiment. When water is added to a solution it is called a ______________

a)

dilution

b)

concentration

c)

heterogeneous solution

d)

dissociation

18.

Luna and Daniel are conducting an experiment to see how much __________ can dissolve in a solvent to create saturated, unsaturated, and supersaturated solutions.

a)

sugar

b)

liquid

c)

solution

d)

solute

19.
Solutions are composed of __________ .
a)
salts and solutes
b)
solvents and salts
c)
solutes and alloys
d)
solutes and solvents
20.

In a science experiment, Avery dissolved sugar in water. What is the substance in which the sugar is dissolved?

a)

sands

b)

solvent

c)

alloy

d)

negative particles

21.

Emma is making a sugar solution for her science experiment. What is the substance being dissolved in the solution?

a)

sands

b)

solute

c)

solvent

d)

alloy

22.

Aria is making lemonade. She adds sugar to the water. The sugar is a

a)

solute

b)

solution

c)

science

23.
A solution is a kind of ________. 
a)
mixture 
b)
compound 
c)
element 
d)
stuff 
24.
a)

solvent

b)

solute

25.
a)

solvent

b)

solution

c)

solute

26.
a)

solute

b)

solvent

27.
a)

solvent

b)

solute

28.
a)

solvent

b)

solute

29.

The smaller the particle size the faster the rate of dissolution (rate of dissolving).

a)

True

b)

False

30.

True or False

The rate of dissolving of a solute in a solvent is faster when the solute and solvent are stirred.

a)

True

b)

False

31.

Jackson is making dinner and is trying to dissolve salt into a pot of water. The salt is dissolving slowly. What should Jackson do to speed up the rate of dissolving?

a)

He should put larger salt particles in the water.

b)

He should heat the water to a higher temperature.

c)

He should completely stop stirring the pot of water.

d)

He should slow down the speed he is stirring the pot.

32.

What combination would dissolve a solid solute the fastest?

a)

high temperature, no stirring

b)

no heat, no stirring

c)

sugar cube, no heat

d)

high temperature, stirring

33.

Stirring the solution increases the rate of dissolution (rate of dissolving).

a)

True

b)

False

34.

The sugar cubes are called the

a)

solute

b)

solvent

35.

The water is called the

a)

solvent

b)

solute

36.
Anna filled a ​cup with hot tea. Then she added a sugar cube. ​Which of these will help to make the sugar cube dissolve more quickly? 
a)
stirring the hot tea
b)
adding more sugar cubes
c)
adding ice to the tea
d)
pouring more tea into the cup
37.
Ernesto and Amanda fill two cups with water. They use hot water in one cup and cold water in the other cup. Next, they will stir a spoon of salt into each cup.     

In which cup will the salt dissolve more slowly? 
a)
The salt will not dissolve in either cup
b)
The salt dissolves more slowly in the hot water
c)
The salt dissolves more slowly in the cold water
d)
The salt dissolves at the same speed in both cups
38.
What is a substance that is dissolved in another substance? 
a)
solution
b)
solute
c)
solvent
d)
compound
39.
What is a solvent?
a)
The substance that does the dissolving in a solution.
b)
The substance that is being dissolved in a solution.
c)
The mixing of different substances.
d)
The process in which neutral molecules lose or gain electrons
40.

A solution with high amount of solute

a)

concentrated

b)

saturated

c)

unsaturated

d)

diluted

41.

What kind of mixture is shown in the picture?

a)

Homogeneous

b)

Heterogeneous

42.

What kind of mixture is shown in the picture?

a)

Homogeneous

b)

Heterogeneous

43.
Which cube(s) has the most surface area?
a)
left cube
b)
middle cubes
c)
right cubes
44.

What are the 3 factors that affect rate of dissolution (how fast things dissolve)?

a)

temperature, wind, surface area

b)

temperature, agitation, surface area

c)

emotions, attitude, language

d)

temperature, sound, surface area

45.

What is the definition of temperature?

a)

The measure of hotness or coldness

b)

A homogeneous mixture

c)

stirring

d)

the area of the chemical components used in a reaction

46.

What is the definition of agitation?

a)

The measure of hotness or coldness

b)

A homogeneous mixture

c)

stirring, shaking, mixing

d)

the area of the chemical components used in a reaction

47.

What is the definition of surface area?

a)

The measure of hotness or coldness

b)

A homogeneous mixture

c)

stirring, shaking, mixing

d)

the area of the chemical components used in a reaction

48.

How does temperature affect rate of dissolution?

a)

high (hot) temperature dissolves slowly

b)

high (hot) temperature dissolves faster

c)

low (cold) temperature dissolves faster

49.

How does agitation affect rate of dissolution?

a)

It does not affect it

b)

agitation increases the rate of dissolution (dissolves faster)

c)

agitation decreases the rate of dissolution (dissolves slower)

50.

How does surface area affect rate of dissolution?

a)

It does NOT affect rate of dissolution

b)

higher surface area (more little pieces) dissolves faster

c)

lower surface area (more big pieces) dissolves faster

51.

What is the best definition of rate of dissolution?

a)

the measure of hotness or coldness

b)

stirring

c)

the area of the surface of the solute

d)

the speed at which a solute dissolves in a solvent to form a solution

52.

Grace is sitting by a campfire and notices the wood turning into ash and smoke. Is this process a chemical or physical change?

a)

chemical

b)

physical

53.

Abigail accidentally dropped a glass cup, and it shattered on the floor. Is this glass breaking a chemical or physical change?

a)

chemical

b)

physical

54.

Benjamin left his bicycle outside in the rain for several weeks. Is a a rusting bicycle a chemical or physical change?

a)

chemcial

b)

physical

55.

Kai observed ice cubes melting in a glass of water. Is melting ice a chemical or physical change?

a)

chemical

b)

physical

56.

Luna is cooking breakfast and decides to fry an egg. Is frying an egg a physical or chemical change?

a)

chemical

b)

physical

57.

Which is an example of a chemical change?

a)
b)
c)
d)
58.

Which is an example of a chemical change?

a)
b)
c)
d)
59.

Which is an example of a physical change?

a)
b)
c)
d)
60.

Isla is painting her room. Which is an example of a physical property she might consider?

a)

color

b)

flammability

c)

reactivity

d)

toxicity

61.

Anika is conducting an experiment in her science class. She wants to identify a chemical property of a substance. Which of the following should she consider?

a)

color

b)

flammability

c)

shape

d)

size

62.

Aria and Aiden observed a piece of iron change from shiny to rusty. What caused this change?

a)

a chemical reaction

b)

a heat reaction

c)

a cold reaction

d)

a physical reaction

63.

Benjamin is conducting a science experiment. Which is the best example of a new substance forming?

a)

lighting a match

b)

cutting a piece of paper

c)

popping a balloon

d)

hitting a nail with a hammer

64.

Henry is bending a metal rod to fit it into a toolbox. What type of change is this?

a)

Physical Change

b)

Chemical Change

65.

Charlotte is observing a pot of water on the stove. What type of change is occurring as the water boils?

a)

Physical Change

b)

Chemical Change

66.

Jackson is observing a Candle Burning

a)

Physical Change

b)

Chemical Change

67.

David noticed a shape change in the ice cube as it melted. What is this an evidence of?

a)

New substance

b)

Shape Change

c)

Light produced

d)

Gas released.

68.

Emma is melting a chocolate bar. What type of change is this?

a)

Physical Change

b)

Chemical Change 

69.

Kai and Scarlett are conducting an experiment where they combine baking soda and vinegar to make carbon dioxide.

a)

Chemical Change

b)

Physical Change

70.

Isla and Grace are watching fireworks exploding in the sky. Is this a physical change or a chemical change?

a)

physical change

b)

chemical change

71.

Noah is ripping up paper ...

a)

Chemical Change

b)

Physical Change

72.

Emma is cutting a tree limb into logs, which is (a)____________, and burning them in the fireplace is (b)____________.

a)

(a) A Physical Change

(b) Also a Physical Change

b)

(a) A Physical Change

(b) A Chemical Change

c)

(a) A Chemical Change

(b) Also a Chemical Change

d)

(a) A Chemical Change

(b) A Physical Change

73.

When Aria and Noah mixed two liquids in the lab and a solid was formed, the new solid is called a ________________.

a)

Levitate

b)

Precipitate

c)

Palpitate

d)

Bad date

74.

Noah is conducting an experiment in his chemistry class. Which of the following is a chemical change?

a)

Mixing two clear liquids and forming a blue liquid

b)

Mixing a clear liquid and white solid and getting a clear liquid

c)

Mixing a clear liquid and a dark purple solid and getting a light purple liquid

d)

Mixing a clear liquid with a white solid and getting a cloudy white liquid

75.

Avery observed that ice melting into water is a __________ change.

a)

Physical

b)

Metaphysical

c)

Chemical

d)

Logical

76.

James observed a _________ change in the experiment.

a)

Magical

b)

Chemical

c)

Physical

d)

Seussical

77.

Henry is learning about the human body and wonders about the ability to digest food. What type of process is digestion?

a)

Chemical

b)

Physical

78.

Elijah is making a sports drink by dissolving Gatorade powder in water. Is this a physical or chemical change?

a)

Physical 

b)

Chemical

79.

Charlotte is baking cupcakes in the kitchen. Is this a physical change or a chemical change?

a)

Physical Change

b)

Chemical Change

80.

Aiden is observing a candle burning in his room. What kind of change is a burning candle?

a)

chemical change

b)

physical change

81.

Charlotte is cooking breakfast and decides to fry an egg. What kind of change is this?

a)

chemical change

b)

physical change

82.

What kind of change is it when a firework explodes during a festival celebration?

a)

physical change

b)

chemical change

83.

When Mia bakes cookies, what type of change is occurring?

a)

chemical change

b)

physical change

84.

Charlotte noticed a banana rotting on the kitchen counter. What type of change is this?

a)

chemical change

b)

physical change

85.

Charlotte and Oliver are conducting an experiment where they mix baking soda and vinegar. What type of change is this?

a)

chemical change

b)

physical change

86.

Avery noticed that the metal gate in their backyard was rusting. What type of change is this?

a)

chemical change

b)

physical change

87.
a)

chemical change

b)

physical change

88.
a)

chemical change

b)

physical change

89.
a)

chemical change

b)

physical change

90.

Emma left her ice cream out in the sun. Ice cream melting is what type of change?

a)

chemical change

b)

physical change

91.

Emma is cutting a pizza into 8 separate slices. What type of change is this?

a)

chemical change

b)

physical change

92.
a)

chemical change

b)

physical change

93.

Aria is observing a piece of ice melting in a glass. Is this change Physical or Chemical?

a)

Physical

b)

Chemical

94.

Abigail is observing a piece of metal rusting over time. Is this change Physical or Chemical?

a)

Physical

b)

Chemical

95.

James is observing a piece of ice melting in a glass. Is this change Physical or Chemical?

a)

Physical

b)

Chemical

96.

Benjamin is observing a piece of metal rusting over time. Is this change Physical or Chemical?

a)

Physical

b)

Chemical

97.

Hannah is observing a piece of ice melting in a glass. Is this change Physical or Chemical?

a)

Physical

b)

Chemical

98.

Hannah is observing the process of ice melting into water. Is this change Physical or Chemical?

a)

Physical

b)

Chemical

99.

Charlotte is observing a piece of metal rusting over time. Is this change Physical or Chemical?

a)

Physical

b)

Chemical

100.

Noah is observing a campfire. He notices the wood turning into ash and smoke. Is this change Physical or Chemical?

a)

Physical

b)

Chemical

101.

Aria is observing a piece of ice melting in a glass. Is this change Physical or Chemical?

a)

Physical

b)

Chemical

102.

Ethan is sitting by a campfire and notices the wood turning into ash and smoke. Is burning wood a chemical or physical change?

a)

chemical

b)

physical

103.

Liam accidentally dropped a glass cup, and it shattered on the floor. Is this a chemical or physical change?

a)

chemical

b)

physical

104.

Aiden left his bicycle outside in the rain for a week. Is a a rusting bicycle a chemical or physical change?

a)

chemcial

b)

physical

105.

Oliver observed ice cubes melting in a glass of water. Is this melting ice a chemical or physical change?

a)

chemical

b)

physical

106.

Grace left a sandwich in her backpack over the weekend. Is the spoiling of the sandwich a physical or chemical change?

a)

physical

b)

chemical

107.

Noah is cooking breakfast and decides to fry an egg. Is frying an egg a physical or chemical change?

a)

chemical

b)

physical

108.

Nora noticed that sugar dissolves in her tea

a)

physical Change

b)

chemical change

109.
Which is a chemical change?
a)
freezing fruit juice
b)
slicing a potato
c)
boiling water
d)
copper metal turning green
110.
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
111.

What is physical change?

a)

How two chemicals react with one another when combined

b)

A property that we can measure or observe with our 5 senses or other tools

c)

When two chemicals react with one another to form a new substance

d)

When a change occurs but it does not result in the formation of a new substance

112.

What is chemical change?

a)

How two chemicals react with one another when combined

b)

A property that we can measure or observe with our 5 senses or other tools

c)

When two chemicals react with one another to form a new substance

d)

When a change occurs but it does not result in the formation of a new substance

113.

When you increase the energy by heating a liquid what happens to the motion of the molecules

a)

They slow down

b)

They speed up

c)

Heat doesnt change the motion of the molecules

114.

Which of the following is an indication of chemical change

a)

Melting

b)

Freezing

c)

Burning

d)

Evaporating

115.

What do we call the molecules that are present at the end of a chemical reaction?

a)

Reactants

b)

Products

c)

Ingredients

d)

Atoms

116.

Thermal energy (heat) is released or absorbed during the reaction explains the _________________

a)

Change in color

b)

Change in temperature

c)

Change in gas

117.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
118.

Is melting butter for popcorn a chemical or physical change?

a)

chemical

b)

physical

119.
Which of the following is NOT an example of a physical change?
a)
crumpled paper
b)
pencil sharpening
c)
shrunken clothing
d)
rust
120.
Freezing Juice?
a)
Physical Change
b)
Chemical Change
121.
A change where one or more new substances are created.
a)
Physical Change 
b)
Chemical Change 
122.

Change in color is a physical change.

a)

True

b)

False

123.
Fizzing, foaming, and burning are all examples of
a)
Chemical change
b)
Physical change
124.

Rust on an iron bar is an example of chemical change.

a)

True

b)

False

125.

When you break a cracker into pieces it is a...

a)

Chemical change

b)

Physical change

126.
Photosynthesis is an example of a
a)
physical change
b)
chemical change
127.
Dissolving sugar in water is an example of a 
a)
physical change
b)
chemical change
128.
Digesting your food is an example of 
a)
chemical change
b)
physical change
129.

The melting of wax is an example of a

a)

chemical change

b)

physical change

130.

Cutting a log in to small pieces is a chemical change.

a)

true

b)

false

131.
Which is an example of a chemical reaction?
a)
paper cut into small pieces
b)
chocolate melting in a pan
c)
flour and sugar mixed in a bowl
d)
cookies baking in an oven

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