WorksheetsChemical and Physical Changes/Reaction PS.5a,b
Total questions: 21
Worksheet time: 11mins
Name
Class
Date
1.
Which process is a physical change?
a)
Burning paper
b)
Tearing Paper
c)
Melting butter
d)
Rusted metal
2.
A banana browning in the air is an example of ______
a)
Physical Property
b)
Chemical Change
c)
Chemical Property
d)
Physical Change
3.
Changing ice into water is an example of____
a)
bonding change
b)
identity change
c)
chemical change
d)
physical change
4.
When a piece of paper is crumbled, this is a change of
a)
density
b)
color
c)
shape
d)
mass
5.
During a chemical change, a substance
a)
remains the same
b)
changes into another substance
c)
loses physical properties
d)
loses chemical properties
6.
What is an example of energy being released?
a)
changing density
b)
changing mass
c)
melting
d)
heating
7.
A ________ is a solid that forms from a solution.
a)
combustion
b)
state
c)
precipitate
d)
evaporation
8.
A ________ is a solid that forms from a solution.
a)
combustion
b)
solididate
c)
precipitate
d)
settling
9.
During an ordinary chemical reaction, mass is _______.
a)
gained
b)
destroyed
c)
lost
d)
conserved
10.
Two examples of chemical changes are firework explosions and leaves ______________.
a)
falling off the tree
b)
changing color
c)
staying green
d)
blowing in the wind
11.
One example of a physical change is when liquid water changes to a solid, forming __________.
a)
gas
b)
melting
c)
copper
d)
ice
12.
One easy way to determine if a physical change has taken place is to note changes in size or ____________.
a)
gas
b)
shape
c)
freezing
d)
energy
13.
An example of a chemical change is a _____.
a)
broken fingernail
b)
cracked egg
c)
rusted nail
d)
broken glass
14.
The starting materials in a chemical reaction are called _____.
a)
products
b)
solution
c)
reactancts
d)
change
15.
The substances made during the chemical reaction are called ________
a)
reactants
b)
solution
c)
products
d)
problem
16.
A chemical equation shows or represents ___________.
a)
a coefficient
b)
a product
c)
a chemical reaction
d)
The number of atoms
17.
All of the following are physical properties Except _____
a)
melting point
b)
density
c)
flammability
d)
freezing point
18.
All of the following of examples of chemical properties EXCEPT _____
a)
flammability
b)
boiling point
c)
combustibility
d)
Acidity
19.
In an _____________ reaction, heat is released.
a)
chemical
b)
exothermic
c)
physical
d)
endothermic
20.
In an _____________ reaction, heat is released, which results in an increase in temperature.
a)
chemical
b)
exothermic
c)
physical
d)
endothermic
21.
In an _____________ reaction, he is absorbed, which results in a cold substance.
a)
exothermic
b)
physical
c)
endothermic
d)
solid
100 %
