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WorksheetsMatter
Total questions: 16
Worksheet time: 10mins
Name
Class
Date
1.
Susie wants to make lemonade on a hot summer day. She mixes lemon juice, water, and sugar in a large container. Which of the following happens as she combines the ingredients?
a)
They mix together to form a new compound.
b)
They mix together to form a homogeneous solution
c)
The stirring motion causes them to break down into elements.
d)
The heavier items will not completely dissolve, creating a suspension.
2.
In the modern periodic table of elements, all of the known elements are arranged by which property?
a)
radioactivity
b)
atomic mass
c)
atomic number
d)
number of neutrons
3.
Kaitlyn is blending together ingredients to create different mixtures. Which combination of substances would most likely result in a homogeneous mixture?
a)
sand and gravel
b)
sand and salt
c)
gravel and water
d)
salt and water
4.
Which of the following statements regarding matter is true?
a)
Atoms can combine to form compounds.
b)
The elements make up the building blocks of all matter.
c)
Every atom will bond in order to achieve a stable neutron-proton ratio.
d)
There are more than 100 naturally occurring elements that make up all matter.
5.
Which of the following correctly describes a property of an atom?
a)
It has more protons than neutrons.
b)
It has a negative or positive charge.
c)
It has an equal number of protons and electrons.
d)
It has an equal number of neutrons and electrons.
6.
Ocean water is a combination of salt and water. Which of the following best describes the composition of ocean water?
a)
It is an element, since water is found in all living things.
b)
It is a suspension, since particles can be found in ocean water.
c)
It is a compound, since it results from the combination of elements.
d)
It is a solution, since it is made up of one substance dissolved in another.
7.
Walter left his school bag in the car one hot September afternoon while he went into the mall. In it he had his homework paper, six crayons, an empty plastic water bottle, and a chocolate bar. Which of these things is most likely to show the greatest amount of physical change when he returns to the car in an hour?
a)
homework papaer
b)
crayons
c)
water bottle
d)
chocolate bar
8.
Robert is hiking through the forest and writing down his observations. He steps on a branch and it breaks into several pieces. Which of the following best describes the resulting properties of the branch?
a)
The density of the branch decreased, since it now takes up less space.
b)
The molecular arrangement of the branch changed as the broken pieces changed phase.
c)
The total mass of the branch pieces is the same, and only a physical change has occurred.
d)
The chemical composition of the branch changed as the broken pieces reacted with the environment.
9.
Which of the following is an example of a chemical change?
a)
freezing water to make ice
b)
boiling water to make steam
c)
making salt water from salt and water
d)
separating water into hydrogen and oxygen
10.
Joey is performing an experiment in science class. He mixes two liquids in a test tube, and gas bubbles appear at the surface of the test tube. Which of the following describes what is most likely taking place?
a)
A physical change is causing a change in phase from liquid to gas.
b)
A chemical change has caused the liquids to undergo combustion and gas is escaping.
c)
A physical change is causing the solution to exhibit different properties than the original substances.
d)
A chemical change has resulted in the production of a new substance, which is being given off as a gas.
11.
Which of the following is an example of a chemical change?
a)
evaporating
b)
melting
c)
oxidation
d)
tearing
12.
Which of the flowing is an example of a chemical change?
a)
A rock breaks into pebbles.
b)
Wood burns and becomes charcoal.
c)
Water boils and changes from a liquid to a gas.
d)
Dry ice (solid carbon dioxide) sublimes into carbon dioxide gas.
13.
Which of the following best describes how chemical changes differ from physical changes?
a)
Physical changes produce no new substances and chemical changes do.
b)
Physical changes always involve the formation of a gas while chemical changes may not.
c)
Physical changes involve a change of state; chemical changes involve a change of shape.
d)
Physical changes can be either intensive or extensive; chemical changes are always extensive.
14.
What are the characteristics of a gas?
a)
A state of matter that conducts electricity well.
b)
A state of matter that has both a fixed volume and shape.
c)
A state of matter that has a definite volume, but not a definite shape.
d)
A state of matter that does not have a definite volume or shape.
15.
Analyze the table. Which statement is true?
a)
The density of gold and water are closely related.
b)
Mercury is more dense than aluminum.
c)
Lead is less dense than air.
d)
The elements are less dense than the compounds.
16.
Which statement is true when an ice cube melts?
a)
Volume and mass increase.
b)
Volume and mass do not increase.
c)
Volume decrease, but the mass does not change.
d)
Volume increases, but mass decreases.
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