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Mixture, Substance, Physical Change and Chemical Change

Total questions: 41

Worksheet time: 7hrs 50mins

Name
Class
Date
1.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
2.
Is glass breaking a chemical or phyiscal change?
a)
chemical
b)
physical
3.
Is a a rusting bicycle a chemical or physical change?
a)
chemcial
b)
physical
4.
Is melting ice a chemical or physical change?
a)
chemical
b)
physical
5.
Is spoiling food a physical or chemical change?
a)
phyiscal
b)
chemical
6.
Is frying an egg a physical or chemical change?
a)
chemical
b)
physical
7.
Salt dissolves in water
a)
physical Change
b)
chemical change
8.
Which is a chemical change?
a)
freezing fruit juice
b)
slicing a potato
c)
boiling water
d)
copper metal turning green
9.

Which of the following options provides evidence of a CHEMICAL change?

a)

Wood is burned releasing ash and smoke

b)

Rocks separate when soil is sifted

c)

Boiling water bubbles when heated

d)

Salt dissolves in water

10.

Josh decided to mix some vinegar with baking soda. He knew that a reaction occurred because he made careful observations. He noted that the mixture started to foam up and bubble, and it was white in color. How did Josh know that a chemical reaction occurred?

He was sure a reaction occurred because of

a)

the color of the mixture

b)

the smell of the vinegar

c)

the volume of the mixture

d)

the formation of a gas

11.

Chemical change is

a)

A change of matter from one form to another without turning into a new substance.

b)

A change that occurs when one or more substances produce new substances with different properties.

c)

The changes that happen to substances during a chemical change.

d)

The temperature at which a solid becomes a liquid. The melting point of water is 0 °C.

12.

Physical change is

a)

A change of matter from one form to another without turning into a new substance.

b)

A change that occurs when one or more substances produce new substances with different properties.

c)

The changes that happen to substances during a chemical change.

d)

The temperature at which a solid becomes a liquid. The melting point of water is 0 °C.

13.

A new substance is formed during which type of change?

a)

Physical Change

b)

Chemical Change

14.

Properties that can only be observed or measured by changing the chemical identity of a substance.

a)

Physical Properties

b)

Combustible Properties

c)

Chemical Properties

d)

Changeable Properties

15.

A change in the shape of an object is an example of _________________.

a)

a chemical change

b)

energy

c)

an endothermic change

d)

a physical change

16.

Which one shows that a chemical reaction has occurred?

a)

dissolving

b)

melting

c)

formation of a gas

d)

bending

17.
In a ___________change, a substance changes into a different substance.
a)
Physical
b)
Chemical
18.
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
19.
A pure substance...
a)
is an element or a compound
b)
is an element or a mixture
c)
is a compound or a mixture
d)
is a mixture
20.

NaHCO3 is an example of

a)
an abbreviation
b)
a compound
c)
a mixture
d)
an element
21.
What is an example of an element?
a)
Oxygen
b)
Pure water
c)
Air
d)
Table salt
22.

two or more substances that are together in the same place but their atoms are not chemically bonded

a)

mixture

b)

compound

c)

mass

d)

molecule

23.

a measure of how much matter is in an object

a)

weight

b)

volume

c)

density

d)

mass

24.

anything that has mass and take up space

a)

substance

b)

matter

c)

atom

d)

element

25.
In a ___________change, a substance changes into a different substance.
a)
Physical
b)
Chemical
26.
Which of these is NOT a sign that a chemical change has occurred? 
a)
Change in shape.
b)
An unexpected color change
c)
A temperature change
d)
The formation of a precipitate
27.
When a candle melts, it is a ___________________  change.
a)
chemical
b)
physical
c)
transparent
d)
undefined
28.

Which is an example of a chemical change?

a)

baking a cake

b)

ripping paper

c)

stretching a rubber band

d)

chopping wood

29.

Which of the following is classified as a pure substance?

a)

Lemonade

b)

Fruit punch

c)

ketchup

d)

Hydrogen

30.

Which of the following is NOT a mixture?

a)

milk

b)

lemonade

c)

vegetable salad

d)

carbon

31.

Which of these is an element?

a)

Salt (NaCl)

b)

Water (H20)

c)

Oxygen (O)

d)

Carbon Dioxide (CO2)

32.

Which of these is a compound?

a)

Aluminium (Al)

b)

Carbon Dioxide (CO2)

c)

Nitrogen (N)

d)

Sand

33.

Identify which images are HETEROGENEOUS MIXTURES! (Check all that apply)

a)
b)
c)
d)
34.

Solutions are ___________ mixtures.

a)

Solid

b)

Homogenous

c)

Heterogeneous

d)

Gas

35.
Max is hungry and he prepares cereal with milk. This is an example of a: 
a)
Homogeneous mixture
b)
Heterogeneous mixture
36.
What are the two types of Mixtures
a)
Elements and Subatomic Particles
b)
Protons and Electrons
c)
Atoms and Compounds
d)
Homogenous and Heterogeneous
37.
Two substances physically combined and that appears the same throughout is classified as
a)
A homogeneous mixture
b)
A heterogeneous mixture
c)
An element
d)
  A compound
38.

What type of mixture does this diagram represent?

a)

Homogeneous

b)

Heterogeneous

39.

This separation method is called...

a)

Magnetism

b)

Filtration

c)

Distillation

d)

Evaporation

40.
What type of mixture is this?
a)
homogenous mixture
b)
chemical
c)
heterogeneous mixture 
d)
solid mix
41.
a)
heterogeneous mixture
b)
homogeneous mixture

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