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Physical and Chemical Change

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.
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
2.
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
3.
Which answer makes a correct statement?
a)
Physical change only changes the size.
b)
Physical change only changes the color.
c)
Physical changes begin and end with the same matter.
d)
Physical changes change the matter into something total different.
4.
A teacher is demonstrating physical and chemical changes to her class. Which action should she use to demonstrate a chemical change?
a)
cutting a piece of paper
b)
folding a piece of paper
c)
tearing a piece of paper
d)
burning a piece of paper
5.
Which of the following indicates a chemical change?
a)
Change in state of matter
b)
Temperature change
c)
Change in size 
d)
Change in shape
6.
Which of the following DOES NOT indicate a chemical change/reaction is occurring?
a)
Color Change
b)
Formation of a Precipitate
c)
Formation of gas/bubbles
d)
State of matter change
7.
Which of the following indicates a PHYSICAL change?
a)
Change in temperature
b)
Change in shape
c)
Formation of a precipitate
d)
Change in color
8.

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

9.

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

a)

sour milk

b)

burning wood

c)

breaking a pencil

d)

rust

10.

What does it mean when there is a physical change?

a)

Matter has change from one substance into another.

b)

Matter has change on the molecular level

c)

A new substance has been formed.

d)

Matter has changed size, shape or form.

11.
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
12.
A different chemical substance is formed when _____. 
a)
water boils
b)
metal rusts
c)
ice melts
d)
rock is crushed
13.
When there's a chemical reaction, the original state of matter is changed in what way?
a)
temporarily
b)
partially
c)
permanently
d)
initially
14.
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
15.
Evidence of Chemical Change.
a)
New Substance 
b)
Size change
c)
State change
d)
Mixture 
16.
Evidence of a physical change.
a)
New substance
b)
Shape Change
c)
Light produced
d)
Gas released.
17.
Which is a way that a piece of paper can go through a chemical change?
a)
fold the paper in half
b)
soak the paper in water
c)
burn the paper with fire
d)
cut the paper with scissors
18.
Which of these is an example of a new substance being formed?
a)
a nail rusting
b)
a wall being painted
c)
water changing to steam
d)
paper being folded
19.

A physical change is

a)

a change where the characteristics do not change the substance

b)

a change where the characteristics do change the substance

c)

a change where the chemistry changes

20.

A chemical change is when

a)

the chemical properties change

b)

the chemical properties do not change

c)

a change where the characteristics do not change the substance

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