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WorksheetsPractice Classifying Matter
Total questions: 36
Worksheet time: 1hrs 12mins
Name
Class
Date
1.
iron filings (Fe)
a)
Element
b)
Compound
c)
Heterogeneous Mixture
d)
Homogeneous Mixture
2.
limestone (CaCO3)
a)
Element
b)
Compound
c)
Heterogeneous Mixture
d)
Homogeneous Mixture
3.
orange juice (juice and pulp)
a)
Element
b)
Compound
c)
Heterogeneous Mixture
d)
Homogeneous Mixture
4.
Pacific Ocean (Water, Salt, Coral, Fish)
a)
Element
b)
Compound
c)
Heterogeneous Mixture
d)
Homogeneous Mixture
5.
Aluminum (Al)
a)
Element
b)
Compound
c)
Heterogeneous Mixture
d)
Homogeneous Mixture
6.
magnesium (Mg)
a)
Element
b)
Compound
c)
Heterogeneous Mixture
d)
Homogeneous Mixture
7.
acetylene (C2H2)
a)
Element
b)
Compound
c)
Heterogeneous Mixture
d)
Homogeneous Mixture
8.
pure water (H2O)
a)
Element
b)
Compound
c)
Heterogeneous Mixture
d)
Homogeneous Mixture
9.
Substance that consists of one type of atom. It is a pure substance. Found on the Periodic Table.
a)
Element
b)
Compound
c)
Mixture
d)
I don't know
10.
A type of substance containing atoms of two or more elements chemically bonded together is a mixture.
a)
Ture
b)
False
11.
Combinations of 2 or more substances (elements and compounds) that are physically blended together.
a)
Compound
b)
Mixture
c)
Element
d)
Substance
12.
Salad is an example of...
a)
a mixutre
b)
an element
c)
a compound
13.
Pure oxygen (O) is an example of...
a)
an element
b)
a mixture
c)
a compound
14.
An example of ...
a)
A mixture
b)
A compound
c)
An element
15.
Combination of two or more substances that are not chemically combined.
a)
mixture
b)
solution
c)
solvent
d)
solute
16.
Are these molecules also compounds?
a)
YES
b)
NO
17.
Are these molecules also compounds?
a)
YES
b)
NO
18.
TRUE OR FALSE:
Every compound is a molecule but not every molecule is a compound.
Every compound is a molecule but not every molecule is a compound.
a)
TRUE
b)
FALSE
19.
Ions are:
a)
atoms with a positive or negative charge
b)
atoms with no charge
c)
atoms with ONLY a positive charge
d)
atoms with ONLY a negative charge
20.
What is an ion?
a)
A Charged Atom
b)
A Large Atom
c)
A Small Atom
d)
A Cute Atom
21.
Why are ions formed?
a)
To make our lives difficult
b)
Because atoms want 8 valence electrons
c)
Because atoms have the same number of protons and electrons
d)
Because atoms gained neutrons
22.
An atom becomes _________ when it gains electrons.
a)
Positive
b)
Negative
c)
Neutral
d)
Invinsible
23.
Cations are...
a)
Positive
b)
Negative
c)
Neutral
d)
Purring
24.
An atom becomes _______ when it loses electrons.
a)
Positive
b)
Negative
c)
Neutral
d)
Invinsible
25.
Anions are...
a)
Positive
b)
Negative
c)
Neutral
d)
Crying
26.
Which particles change the charge in atoms when ions are formed?
a)
Protons
b)
Electrons
c)
Neutrons
d)
Kittens
27.
What are the basic building blocks for all matter?
a)
atoms
b)
elements
c)
compounds
d)
chemicals
28.
What do we call a substance consisting of a single atom?
a)
coefficient
b)
element
c)
compound
d)
molecule
29.
What do we call a chemical substance made up of 2 or more different types atoms bonded together?
a)
formula
b)
atom
c)
subscript
d)
compound
30.
All ____________ are made up of two or more atoms bonded together.
a)
atoms
b)
molecules
c)
electrons
d)
elements
31.
Bonds between atoms in a molecule form as a result of the sharing of?
a)
formulas
b)
electrons
c)
atoms
d)
chemicals
32.
H2O2← ?
This number tells the number of atoms present.
This number tells the number of atoms present.
a)
coefficient
b)
molecule
c)
subscript
d)
atom
33.
→2H2O
This number tells how many molecules are in a chemical equation.
This number tells how many molecules are in a chemical equation.
a)
coefficient
b)
subscript
c)
compound
d)
element
34.
2H2O
How many Hydrogen atoms are present?
How many Hydrogen atoms are present?
a)
2
b)
4
c)
1
d)
10
35.
2H2O
How many Oxygen atoms are present?
How many Oxygen atoms are present?
a)
2
b)
4
c)
1
d)
5
36.
2H2O
How many H2O molecules are present?
How many H2O molecules are present?
a)
1
b)
4
c)
2
d)
8
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