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WorksheetsElements Mixtures and Compounds
Total questions: 24
Worksheet time: 13mins
Name
Class
Date
1.
A pure substance that cannot be separated into simpler substances by chemical or physical means.
a)
Element
b)
Compound
c)
Mixture
d)
Chemical
2.
These contain only one kind of atom.
a)
element
b)
compound
c)
mixture
d)
water
3.
A compound is made of ________ atoms.
a)
big
b)
similar
c)
different
4.
Carbon Dioxide is a ______
a)
compound
b)
element
c)
mixtures
d)
Battle of Bunker Hill
5.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
6.
Salt water boils and the water completely evaporates, salt (NaCl) is left in the bottom of the beaker. Which of the following is left in the beaker?
a)
Compound
b)
Element
c)
Mixture
d)
None of the Above
7.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds
8.
Iced Tea (with ice in it)
a)
Element
b)
Compound
c)
Heterogenous Mixture
d)
Solution
9.
Pizza
a)
Element
b)
Compound
c)
Heterogenous Mixture
d)
Solution
10.
When elements form mixtures, the elements keep their original properties.
a)
True
b)
False
11.
What is Fe?
a)
Boron
b)
Fluorine
c)
Francium
d)
Iron
12.
The air is a _________.
a)
element
b)
mixture
c)
compound
d)
energy
13.
Elements can be broken down into simpler substances.
a)
false
b)
true
c)
sometimes
14.
Examples are milk and gasoline.
a)
elements
b)
mixtures
c)
compounds
15.
Examples are diamonds (C) and Uranium (U)
a)
elements
b)
mixtures
c)
compounds
16.
Is sugar (C12H22O11) an element or a compound?
a)
Element
b)
Compound
17.
What is salad?
a)
element
b)
compound
c)
mixture
18.
Which of the following is an element?
a)
Sugar
b)
Salt
c)
Water
d)
Oxygen
19.
The building block of matter is
a)
Mixture
b)
Atom
c)
Element
d)
Substance
20.
Water is an element
a)
true
b)
false
21.
Beatriz wants to make a mixture out of her bowl of blueberries. Which of the following would turn her bowl of blueberries into a mixture?
a)
adding more blueberries to the bowl
b)
adding raspberries to the bowl
c)
cutting up the blueberries
d)
mashing the blueberries
22.
Which example is a compound?
a)
N2
b)
O2
c)
Cu
d)
H2O2
23.
A _______ _________ is what we call when the composition is not uniform throughout.
a)
homogeneous mixture
b)
heterogeneous mixture
24.
A mixture that appears to be evenly mixed throughout:
a)
an atom
b)
a compound
c)
a homogeneous mixture
d)
a heterogeneous mixture
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