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WorksheetsMatter Lesson 2
Total questions: 22
Worksheet time: 1hrs 11mins
Name
Class
Date
1.
A material that cannot be broken down into anything simpler by a chemical reaction.
a)
compound
b)
element
c)
mixture
d)
ingredient
2.
What is the name of the center of an atom?
a)
electron belt
b)
proton
c)
nucleus
d)
neutron
3.
Particles with more than one atom joined together are __________.
a)
molecules
b)
elements
c)
solutions
d)
hard to find
4.
Which two elements make up table salt, NaCl?
a)
sodium and chloride
b)
oxygen and chloride
c)
sodium and carbon
d)
hydrogen and oxygen
5.
Which two elements make water, H2O?
a)
helium and oxygen
b)
hydrogen and iron
c)
hydrogen and oxygen
d)
oxygen and nitrogen
6.
Physical properties include:
a)
density, rusting, tarnishing
b)
odor, mass, boiling
c)
color, acidity, combustibility
d)
color, odor, density
7.
Which of the following is an example of a compound?
a)
salt
b)
oxygen
c)
helium
d)
mercury
8.
Which of the following describes a compound?
a)
cannot be broken down into simpler parts
b)
has a negative charge
c)
formed by the chemical combination of two or more elements
d)
formed by mixing two similar elements
9.
The smallest unit of an element that has the properties of that element is a(n) _____________.
a)
atom
b)
molecule
c)
compound
d)
ingredient
10.
Which 2 particles make up the nucleus of an atom?
a)
electron and neutron
b)
proton and neutron
c)
proton and electron
d)
none of these
11.
All known elements are organized on the _________________________.
a)
Periodic Table
b)
Elements Chart
c)
Mendelev Table
d)
Chemical Table
12.
How do you know a physical change has occured?
a)
A gas begins to emit from the mixture?
b)
Ashes are produced as a result of the change.
c)
Rust can be seen on the matter.
d)
The size, state, or shape of matter has changed.
13.
A physical change can be reversed.
a)
True
b)
False
14.
Which of these is a sign of a chemical change?
a)
the matter breaks in half
b)
the matter shrinks
c)
the color of the matter changes
d)
the matter changes from a liquid to a solid
15.
Which particle of an atom has a positive charge?
a)
proton
b)
neutron
c)
electron
16.
Which particle of an atom has a negative charge?
a)
proton
b)
neutron
c)
electron
17.
Which particle of an atom does not have a charge (neutral)?
a)
proton
b)
neutron
c)
electron
18.
Which statenent is true?
a)
Particles of matter only exist in solids.
b)
Particles of matter are too small to be seen.
c)
Particles of matter can be seen with the human eye.
d)
Particles of matter can be seen in solids and liquids, but not in gases.
19.
What is the difference between physical properties and chemical properties?
a)
Physical properties cannot be observed but chemical properties can be seen.
b)
Physical and chemical properties are exactly the same.
c)
Physical properties include mass and color. Chemical properties include size and state of matter.
d)
Physical properties can be seen without changing the matter. Chemical properties can only be seen when the matter changes.
20.
How are compounds formed?
a)
Compounds are formed when two or more elements combine chemically.
b)
Compounds are formed when two atoms of the same element combine.
c)
Compounds are formed when elements are frozen.
d)
Compounds are formed when three or more elements are placed in the same container.
21.
Which of the following is the chemical name of the compound, table salt?
a)
ClN2
b)
NaC
c)
NaCl
d)
SN2
22.
Which of the following is the chemical name of the compound water?
a)
HeO
b)
HO2
c)
H2O
d)
HO
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