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Physical and chemical change

Total questions: 84

Worksheet time: 1hrs 3mins

Name
Class
Date
1.
Ice melting
a)
Chemical Change
b)
Physical Change
2.
Wood burned in a fireplace
a)
Chemical Change
b)
Physical Change
3.
Cake batter baked in an oven
a)
Chemical Change
b)
Physical Change
4.
Baking soda and vinegar combine to make carbon dioxide
a)
Chemical Change
b)
Physical Change
5.
Glass bottle that is shattered
a)
Chemical Change
b)
Physical Change
6.
Copper roof changing color
a)
Chemical Change
b)
Physical Change
7.
Rust on an iron fence
a)
Chemical Change
b)
Physical Change
8.
Shredding a piece of paper
a)
Chemical Change
b)
Physical Change
9.
Boiling water
a)
Chemical Change
b)
Physical Change
10.
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
11.
A change where one or more new substances are created.
a)
Physical Change 
b)
Chemical Change 
12.

What happens in a chemical change?

a)

The atoms in the reactants rearrange themselves and bond together differently to form one or more new products with different characteristics than the reactants. When a new substance is formed.

b)

When objects or substances undergo a change that does not change into a different substance.

13.

What happens in a physical change?

a)

The atoms in the reactants rearrange themselves and bond together differently to form one or more new products with different characteristics than the reactants. When a new substance is formed.

b)

When objects or substances undergo a change that does not change into a different substance.

14.

Which type of change can be undone?

a)

Chemical

b)

Physical

15.

What happens to the weight of matter when it undergoes chemical changes?

a)

It stays the same

b)

It increases

c)

It decreases

16.

What happens to the weight of matter when it undergoes a physcial change?

a)

It stays the same

b)

It increases

c)

It decreases

17.

You tear home your homework into little pieces. How much does the homework weigh after you tear it up?

a)

A little less

b)

A little more

c)

The same

d)

None of the above

18.

If you mix 1 gram of salt with 50 grams of water, how many grams of matter will you have after the salt is completely dissolved?

a)

49 grams

b)

50 grams

c)

51 grams

d)

None of the above

19.

fireworks exploding and producing bright colors

a)

physcial change

b)

chemical change

20.

lighting a match

a)

physcial change

b)

chemical change

21.

Burning wood is what type of change?

a)

Physical

b)

Chemical

22.

a different way to say Law of Conservation of Matter

a)

Law of Conservation of Volume

b)

Law of Conservation of Energy

c)

Law of Conservation of Mass

d)

Law of Conservation of Environment

23.

If a chemical reaction occurs in a closed system (no way for any part of the reaction to escape), how does the product mass compare to the reactant mass?

a)

the mass would decrease

b)

the mass would increase

c)

the mass would stay the same

d)

it depends on the type of reaction

24.

Why does this picture demonstrate the Law of Conservation of Matter?

a)

the number of atoms of each element are the same on both sides

b)

they start out separate and end up combined

c)

the same elements are used

d)

it doesn't demonstrate the Law of Conservation of Matter

25.

If the mass of a chemical reaction's product is 15 grams, what would the mass of the reactants be?

a)

20 g

b)

15 g

c)

10 g

d)

3 g

26.
An oreo cookie weighs 20 grams.  It gets crushed into crumbs for a recipe.  How much do its crumbs weigh?
a)
15 grams
b)
25 grams
c)
20 grams
27.

What is the Law of Conservation of matter?

a)

Matter is created in a chemical reaction

b)

Matter is created in a physical change

c)

New chemicals formed from a chemical reaction have a larger overall matter than the original reactants

d)

Matter is never created or destroyed

28.

matter with mass is anything but it also takes up...

a)

volume

b)

space

c)

change

d)

mass

29.

matter cannot be...

a)

added or paired

b)

created or destroyed

c)

a compound or made

d)

changed or bonded

30.

Which of the following would be considered a physical change?

a)

Cutting paper

b)

pH test

c)

Burning marshmellow

d)

Roasting a Turkey

31.
Which of the following is represented by point 3 on the graph above. 
a)
Gas heating
b)
Sublimation
c)
Liquid Heating
d)
Evaporation
32.
Which of the following is a Physical Property 
a)
Toxicity
b)
Flammability
c)
Malleability
d)
Reactivity
33.
Ice melting
a)
Chemical Change
b)
Physical Change
34.
Students observed as small drops of water collected on the outside of a glass.
Which statement BEST describes why the water vapor in the air formed liquid water on the outside of the glass?
a)
The humidity outside the glass turns the vapor to liquid water.
b)
The water vapor pulls the water from inside the glass to outside the glass.
c)
The temperature of the water inside the glass is colder than the air outside the glass.
d)
The temperature of the water inside the glass is warmer than the air outside the glass.
35.
A student is creating a potting soil mix. She combines 100 grams of sand, 200 grams of soil, and 200 grams of pebbles to make her potting soil. What is the mass of the potting soil?
a)
100 grams 
b)
200 grams
c)
300 grams
d)
500 grams
36.
What is anything that has mass and takes up space?
a)
matter
b)
substance
c)
chemistry
d)
property
37.
Is wood burning a physical or chemical change?
a)
Physical 
b)
Chemical
38.
The Law of Conservation of Mass tells us matter can't  ______________.
a)
change color
b)
change state of matter
c)
be created or destroyed
d)
change temperature
39.
Is melting butter for popcorn a chemical or physical change?
a)
chemical
b)
physical
40.
Which of these scientific tools is essential for testing the Law of Conservation of matter? 
a)
Spring Scale 
b)
Metric Ruler 
c)
Balance 
d)
Graduated Cylinder 
41.
Jace measures 20 grams of water in a pan and then freezes it.  A day later he takes the ice cubes out of the pan and notices it is larger than before. What will it weigh? 
a)
40 grams 
b)
30 grams 
c)
20 grams 
d)
10 grams 
42.
What does the Law of Conservation of Matter refer to? 
a)
Matter can not be created or destroyed 
b)
Matter can be created but not destroyed 
c)
Matter can be destroyed but not created 
d)
Matter is being lost everyday 
43.
Why does a block of wood float, but a small nail sink in water? 
a)
The nail is more dense than the wood
b)
The wood is more dense than the nail
c)
They are equal in density but made of different materials.
44.
__________________________  is when gas cools and turns back into a liquid. 
a)
Concentration
b)
Coordination
c)
Condition
d)
Condensation
45.

The weight of a pencil is about

a)

5 g

b)

50 g

c)

500 g

d)

5 kg

46.
Baking soda and vinegar combine to make carbon dioxide
a)
Chemical Change
b)
Physical Change
47.
Glass bottle that is shattered
a)
Chemical Change
b)
Physical Change
48.

Which of these choices is a physical property?

a)

solubility

b)

flammability

c)

ability to rust

d)

reaction with water

49.

Which process is a sign of a chemical change?

a)

a rotting potato gives off a bad smell

b)

a melting block of ice leaves a large puddle

c)

a cloud quickly changes shape when blown by the wind

d)

a plaster statue breaks when it falls on the floor

50.

Which of these best describes physical properties?

a)

Physical properties behave identically for all matter under the same conditions.

b)

Physical properties can be observed without changing the identity of a substance.

c)

Physical properties include flammability.

d)

Physical properties cause atoms and molecules to change structure when substances are mixed.

51.

Which of these is a chemical property of a sheet of paper?

a)

the paper can be burned

b)

the paper can be crumpled

c)

the paper does not attract a magnet

d)

the paper does not conduct electricity

52.

Which of these choices describes a chemical property?

a)

flexibility

b)

boiling point

c)

reactivity with water

d)

electrical conductivity

53.

Which process is an example of of a physical change?

a)

ice melting

b)

milk souring

c)

metal rusting

d)

wood burning

54.

What are the two types of mixtures?

a)

Elements and compounds

b)

Elements and pure substances

c)

Homogeneous and Heterogeneous

d)

Solutes and solvents

55.

Carbon dioxide is what type of pure substance?

a)

Homeogeneous

b)

Heterogeneous

c)

Element

d)

Compound

56.

Anything that has mass and takes up space is

a)

matter

b)

mass

c)

concentration

d)

dissolve

57.

The 3 main states of matter are

a)

solid

b)

liquid

c)

gas

d)

all of the above

58.

Which of the following can be signs that a chemical change has occurred?

a)

color change

b)

formation of a gas (bubbles)

c)

energy change

d)

All of the above

59.

Salt water is an example of a

a)

Heterogeneous mixture

b)

Element

c)

Compound

d)

Homogeneous mixture

60.

Oxygen is an example of

a)

Compound

b)

Element

c)

Homogeneous mixture

d)

Heterogeneous mixture

61.

Rocks and sand together would be an example of

a)

Compound

b)

Element

c)

Homogeneous mixture

d)

Heterogeneous mixture

62.

When sugar dissolves in water a ______________ change occurs.

a)

Physical change

b)

Chemical Change

63.

Cracking an egg is a ________________ change.

a)

Physical Change

b)

Chemical Change

64.

Burning Sugar is an example of a ________________ change.

a)

Physical Change

b)

Chemical Change

65.
Which example best describes a physical change?
a)
iron rusting
b)
charcoal burning
c)
an ice cube melting
d)
a marshmallow burning
66.
a rusting bicycle
a)
physical change
b)
chemical change
67.
fireworks exploding
a)
physical change
b)
chemical change
68.
a)
physical change
b)
chemical change
69.
Ripping up paper ...
a)
Chemical Change
b)
Physical Change
70.
Bubbles form when two or more substances are combined ...
a)
Chemical Change
b)
Physical Change
71.
Causes a change in temperature ...
a)
Chemical Reaction
b)
Physical Reaction
72.
Evidence of a physical change.
a)
New substance
b)
Shape Change
c)
Light produced
d)
Gas released.
73.

When matter changes, it can result in what types of changes?

a)

Chemical

b)

Physical

c)

Acids

d)

Bases

74.

Matter goes through a change resulting in a different state of matter. What type of change is most likely occurring?

a)

Chemical

b)

Physical

c)

Acids

d)

Bases

75.

Matter goes through a change resulting in a change in form. What type of change is most likely occurring?

a)

Chemical

b)

Physical

c)

Acids

d)

Bases

76.

Crushing a Coke Can

a)
Physical 
b)
Chemical
77.

Sodium metal is cut with a knife

a)
Physical 
b)
Chemical
78.

Sugar is mixed and dissolved into water.

a)
Physical 
b)
Chemical
79.

Wood Burning

a)
Physical 
b)
Chemical
80.

Cutting a pizza into slices is what type of change?

a)

chemical change

b)

physical change

81.

Milk curdling/souring.

a)
Physical 
b)
Chemical
82.

Copper tarnishing.

a)
Physical 
b)
Chemical
83.
Fireworks
a)
Physical Change
b)
Chemical Change
84.
Baking cupcakes
a)
Physical Change
b)
Chemical Change

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