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Physical and Chemical Changes

Total questions: 25

Worksheet time: 25mins

Name
Class
Date
1.
The particles in a _____ are the farthest apart and move the fastest.
a)
gas
b)
solid
c)
banana
d)
liquid
2.
A physical change occurs when a substance _____. 
a)
breaks into individual elements
b)
becomes a new substance
c)
changes from an acid to a base
d)
changes shape, size, and form
3.
A chemical change creates a _________. 
a)
change in volume
b)
new substance
c)
mixture
d)
solution
4.
A different chemical substance is formed when _____. 
a)
water boils
b)
metal rusts
c)
ice melts
d)
rock is crushed
5.
Mixtures can be _____________ into the substances that make them up. 
a)
separated
b)
placed
c)
melted
d)
blended
6.
__________ describes how much substance something contains.  
a)
mass
b)
density
c)
boiling point
d)
melting point
7.
What type of change is taking place when a pond freezes in the winter? 
a)
a physical change
b)
a material change
c)
a chemical change
d)
no change
8.
A change in a state of matter is represented in the diagrams below. Which statement describes the process occurring from beaker 1 to beaker 2?
a)
Solid ice is changing into gas.
b)
Liquid water is changing to gas.
c)
Solid ice is melting to liquid water.
d)
Gaseous steam is condensing to solid ice.
9.

Which of the following is NOT an example of a physical change?

a)

crumpling paper

b)

sharpening a pencil

c)

clothes shrinking

d)

sour milk

10.

Which of the following is NOT an example of chemical change?

a)

sour milk

b)

burning wood

c)

breaking a pencil

d)

rust

11.

What is an example of a physical change that happens inside your body?

a)

Food being broken down by acids in your stomach.

b)

Food being broken down into small pieces by your teeth.

c)

Food being moved to your stomach.

d)

Water being absorbed inside your large intestine.

12.

A 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

13.

What is an example of a chemical change that happens inside your body?

a)

Food being broken down by acids in your stomach.

b)

Food being broken down into small pieces by your teeth.

c)

Food being moved to your stomach.

d)

Water being absorbed inside your large intestine.

14.

What happens when a piece of wood burns?

a)

A physical change takes place.

b)

A chemical change takes place.

c)

The wood loses its gravity.

d)

The wood becomes a tree again.

15.

A teacher is demonstrating physical and chemical changes to their class. Which action should they use to demonstrate a chemical change?

a)

Cutting a piece of paper with scissors.

b)

Folding a piece of paper into an airplane.

c)

Ripping a piece of paper with their hands.

d)

Burning a piece of paper with a match.

16.

Which of the following is a physical change?

a)

Dissolving

b)

Rapid release of heat

c)

Fizzing (release of gas)

d)

Rusting

17.
Which Law states that Matter cannot be created or destroyed during a Chemical Change/Reaction?
a)
Conservation of Energy
b)
Conservation of Matter (Mass)
c)
Conservation of Momentum
d)
Conservation of Thermodynamics
18.

Which of the following are examples of a chemical change? Select all that apply.

a)

Iron Rusting

b)

Gas Burning

c)

Breaking a glass

d)

Boiling water

e)

Burning Wood

19.

Select the properties of a physical change. Select all that apply.

a)

Color

b)

Shape

c)

Size

d)

Bubbles

e)

Temperature

20.

Which is an example of a chemical change?

a)

Cutting paper

b)

Digesting Food

c)

Crumbling paper

d)

Boiling water

21.

Which is an example of a physical change?

a)

Cooking

b)

Buring Wood

c)

Ripping paper

d)

Digesting Food

22.
Which of the following changes is NOT a physical change?
a)
getting a haircut
b)
sharpening a pencil
c)
spoiled milk
d)
cracking an egg into a bowl
23.
All matter is made of tiny building blocks called
a)
Legos
b)
atoms
c)
wood
d)
volume
24.
Molecules are formed when two or more ________ join together.
a)
blocks
b)
books
c)
atoms
d)
sizes
25.
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)

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