WorksheetsChapter 7 Review
Total questions: 77
Worksheet time: 1hrs 4mins
Name
Class
Date
1.
What kind of properties can only be observed when a substance changes into a different substance?
a)
physical properties
b)
chemical properties
c)
liquid properties
d)
real properties
2.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
3.
Is hammering wood together to build a house a chemical or physical change?
a)
chemical
b)
physical
4.
Is melting butter for popcorn a chemical or physical change?
a)
chemical
b)
physical
5.
Is bleaching your hair a physical or chemical change?
a)
physical
b)
chemical
6.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
7.
A change in the size, shape, or state of matter.
a)
chemical change
b)
physical change
c)
chemical reaction
d)
electron change
8.
Which of the following is NOT an example of a physical change?
a)
crumpled paper
b)
pencil sharpening
c)
shrunken clothing
d)
sour milk
9.
Kim puts an ice cube in a beaker and it melts. This is a good example of:
a)
a physical change.
b)
a chemical change.
c)
an experiment.
d)
an analysis.
10.
Photosynthesis is an example of a
a)
physical change
b)
chemical change
11.
When you break a cracker into pieces it is a
a)
Chemical change
b)
Physical change
c)
Chemical Weathering
d)
Physical Weathering
12.
Adding baking soda and vinegar together and it fizzes and creates carbon dioxide.
a)
Chemical
b)
Physical
13.
Which is a Chemical property?
a)
Thermal Conductivity
b)
Density
c)
Malleability
d)
Flammability
14.
Which of the following properties is a physical property?
a)
magnetism
b)
reactivity with oxygen
c)
flammability
d)
non-reactive
15.
what is the definition of chemical change?
a)
any change that results in the formation of new chemical substances.
b)
changing clothes
c)
matter cannot be created or destroyed, only change form
d)
changes affecting the form of a chemical substance, but not its chemical composition.
16.
what is the definition of physical change?
a)
any change that results in the formation of new chemical substances.
b)
rusting
c)
changes affecting the form of a chemical substance, but not its chemical composition.
d)
any property that is measurable, whose value describes a state of a physical system
17.
The substances you put together in a chemical reaction and are on the left side of an equation are called
a)
products.
b)
reactants.
c)
elements.
d)
compounds.
18.
The substances you get in a chemical reaction and are listed on the right side of a chemical equation are called
a)
products.
b)
reactants.
c)
elements.
d)
compounds.
19.
Anything that has mass and take up space is considered
a)
Matter
b)
Energy
c)
Chemisty
d)
Endothermic
20.
An shorter way to show a chemical reaction , using symbols instead of words is called
a)
Chemical Equation
b)
Chemical Formula
c)
Symbol
d)
Subscript
21.
Which is NOT an indicator of a chemical change?
a)
temperature change
b)
formation of a precipitate
c)
shape change
d)
production of light
22.
All of the following are chemical changes except
a)
iron rusting
b)
water evaporating
c)
wood burning
d)
food rotting
23.
All of the following are indicators of a chemical change except --
a)
change in the state of matter
b)
formation of a gas
c)
change in temperature
d)
formation of a precipitate
24.
Arrow in the reaction.
a)
Subscript
b)
Products
c)
Yields
d)
Equation
25.
Evidence of a chemical reactions is anything that shows -
a)
a new substance has formed
b)
a solid dissolved in a liquid
c)
interaction between 2 gases
d)
a change in the state of matter
26.
One of the signs of a chemical reaction taking place is:
a)
Bubbles are produced
b)
Reactants are not combining
c)
Products are not forming
d)
Color is not changing
27.
You know you a chemical reaction has occurred if
a)
there is a precipitate.
b)
there is a color change.
c)
there is a temperature change.
d)
All of these answers are evidence.
28.
A clear liquid from a flask is poured into another clear liquid in a beaker. Which of the following results of this procedure would indicate a new substance was formed?
a)
The level of the substance in the beaker is higher after the other liquid is added.
b)
A yellow solid forms and then settles to the bottom of the beaker.
c)
Small white crystals are left behind in the flask that held the first liquid.
d)
The mass of the combined liquids is greater than either original liquid.
29.
Which of the following is an example that includes evidence of a chemical reaction?
a)
A sample of zinc is placed in water and it settles to the bottom
b)
A solid block of ice is heated and it completely melts into a liquid.
c)
Sugar that is burned gives off an odor and turns brown and then black.
d)
A tomato is placed into a blender and chopped up into smaller pieces.
30.
Temperature at which a solid state changes to a liquid state
a)
boiling point
b)
melting point
c)
freezing point
d)
absolute zero
31.
The change of state from a gas to a liquid
a)
condensation
b)
deposition
c)
evaporation
d)
sublimation
32.
Temperature at which matter changes from liquid to solid
a)
freezing point
b)
melting point
c)
boiling point
d)
absolute zero
33.
Gas becomes solid without first becoming liquid
a)
sublimation
b)
deposition
c)
vaporization
d)
evaporation
34.
Vaporization that occurs only at the surface of a liquid
a)
vaporization
b)
deposition
c)
sublimation
d)
evaporation
35.
Angel places a pot of water on a stove. As the water boils, how does the state of the water change?
a)
from solid to liquid
b)
from liquid to solid
c)
from liquid to gas
d)
from gas to liquid
36.
Matter is a composition that is always the same is...
a)
Mixture
b)
Atom
c)
Matter
d)
Substance
37.
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
38.
Combinations of 2 or more substances (elements and compounds) that are physically blended together.
a)
Compound
b)
Mixture
c)
Element
d)
Substance
39.
Salad is an example of...
a)
a mixutre
b)
an element
c)
a compound
40.
Pure oxygen (O) is an example of...
a)
an element
b)
a mixture
c)
a compound
41.
An example of ...
a)
A mixture
b)
A compound
c)
An element
42.
If a mixture has components you can see it is a...
a)
solution
b)
compound
c)
homogeneous mixture
d)
heterogeneous mixture
43.
Italian Salad Dressing
a)
heterogeneous mixture
b)
homogeneous mixture
44.
What is Kool-aid?
a)
element
b)
Heterogeneous Mixture
c)
Homogeneous Mixture
d)
Compound
45.
What has mass and takes up space?
a)
weight
b)
volume
c)
space
d)
matter
46.
What is a pure substance made of two or more elements that are chemically combined?
a)
element
b)
compound
c)
mixture
d)
solution
47.
If a spoonful of salt is mixed in a glass of water, what is the water called?
a)
solute
b)
solution
c)
solvent
d)
element
48.
The amount of matter in an object is its___.
a)
mass
b)
property
c)
volume
d)
change
49.
Substance that dissolves in a solvent.
a)
solute
b)
solvent
c)
solution
d)
concentration
50.
Water.
a)
colloid
b)
solution
c)
element
d)
compound
51.
Salt dissolved in water.
a)
colloid
b)
solution
c)
element
d)
compound
52.
A pure substance
a)
elements
b)
mixtures
c)
compounds
d)
elements and compounds
e)
elements and mixtures
53.
the smallest particle of matter
a)
element
b)
mixture
c)
compound
d)
atom
e)
molecule
54.
a pure substance made up of only one type of atom and cannot be separated by physical or chemical processes
a)
element
b)
mixture
c)
compound
d)
matter
55.
a measure of how much space a substance take up
a)
matter
b)
mass
c)
volume
d)
temperature
56.
two or more atoms that are joined together by a chemical bond
a)
atom
b)
molecule
c)
mass
d)
mixture
57.
two more atoms of different elements chemically bonded to form a new substance
a)
element
b)
mixture
c)
compound
d)
matter
58.
identify the model
a)
element
b)
compound
c)
mixture of element
d)
mixture of compounds
e)
mixture of elements and compounds
59.
identify the model
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds
e)
mixture of elements and compounds
60.
identify the model
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds
e)
mixture of elements and compounds
61.
identify the model
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds
e)
mixture of elements and compounds
62.
The air is a _________.
a)
element
b)
mixture
c)
compound
d)
energy
63.
Salt has a chemical formula of NaCl. Salt is a...
a)
Compound
b)
Element
c)
Mixture
d)
None of the Above
64.
What subatomic particles would you find in the nucleus of an atom?
a)
Protons only
b)
Protons and Neutrons
c)
Neutrons and Electrons
d)
Protons and Electrons
65.
What subatomic particle is electrically neutral (no charge)?
a)
Proton
b)
Ion
c)
Neutron
d)
Electron
66.
What subatomic particle(s) would be found orbiting the nucleus?
a)
Neutrons only
b)
Electrons only
c)
Protons and Neutrons
d)
Protons and Electrons
67.
The positive particles of an atom are
a)
electrons
b)
positrons
c)
neutrons
d)
protons
68.
Mass, relative density, solubility, color, texture, state of matter, conductivity, etc.
a)
Physical state
b)
Insulators
c)
Physical Properties
d)
Inferences
69.
Molecules spread out and move FAST!
a)
solid
b)
gas
c)
liquid
70.
Molecules are tightly packed together
a)
solid
b)
liquid
c)
gas
71.
The ability of a substance to dissolve is called...
a)
malleability
b)
ductility
c)
solubility
72.
A substance that resists change and holds it's shape.
a)
liquid
liquid
liquid
b)
solid
c)
water
d)
clouds
73.
Which box has a higher density?
a)
Box A
b)
Box B
c)
cannot be determined
d)
they are the same
74.
The property that determines if an object will float or sink.
a)
solubility
b)
state of matter
c)
density
d)
conductor
75.
Matter: anything that has _________ and takes up _________.
a)
density, water
b)
mass, space
c)
magnetism, iron
d)
heat, gas
76.
Volume: the amount of _________ something takes up.
a)
matter
b)
density
c)
space
d)
heat
77.
Mass: the amount of ____________ in something.
a)
volume
b)
denisty
c)
matter
d)
magnetism
100 %
