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Worksheetschp 15
Total questions: 38
Worksheet time: 19mins
Matter is composed of various:
substances
elements
mixtures
compounds
A mixture in which the different materials can be easily distinguished is?
heterogeneous mixture
hataroegeneous mixture
homogeneous mixture
A beam of light is (visible, invisible) as it passes through a solution.
visible
invisible
A beam of light (can, cannot) be seen as it passes through a colloid.
cannot
can
Appearance and behavior are:
chemical properties
chemical changes
physical properties
physical changes
what is a substance?
a type of matter with a fixed composition
a type of element with a fixed composition
a type of matter without a fixed composition
a type of element without a fixed composition
When substances go through a physical change, mass is always:
gained
lost
conserved
Chalk is an example of (a/an):
element
compound
solution
colloid
Copper is an example of (a/an):
element
compound
solution
colloid
Granite is an example of (a/an):
element
compound
heterogeneous mixture
homogeneous mixture
Vinegar is an example of (a/an):
compound
suspension
heterogeneous mixture
homogeneous mixture
A pond is an example of (a/an):
suspension
homogeneous mixture
heterogeneous mixture
compound
Water is an example of (a/an):
element
heterogeneous mixture
homogeneous mixture
compound
Fog is an example of (a/an):
element
compound
homogeneous mixture
colloid
All substances are built from:
elements
atoms
metals
salt
By applying energy, you can tear a sheet of paper and cause a __________.
physical change
chemical change
rip in the paper
chemical property
what are elements?
a part or aspect of something abstract
All atoms in a substance with a different identity
All atoms in a substance with the same identity
All atoms in the substance line up together
A glass of iced tea is a ___________ of sugar, lemon, and water.
composition of the most delicious thing ever
mixture
compound
chemical substance
Water is a clear, colorless ____________.
liquid
solution
mixture
element
The words clear and colorless describe two ____________ of water.
physical changes
chemical changes
chemical properties
physical properties
Compounds
a substance in which the atoms of an element is in a fixed proportion
a substance in which the atoms of two or more elements are combined in a fixed proportion
a substance in which the atoms of two or more elements are combined in an indefinite proportion
a substance in which the atoms of an element is in an indefinite proportion
The melting of the wax of a burning candle is a ____________.
physical property
chemical change
physical change
chemical property
a mixture in which the different materials are blended evenly is?
heterogeneous
homogeneous
a homogeneous mixture of particles that are so small they cannot be seen with a microscope and will never settle is?
suspensions
colloids
solutions
a type of mixture with particles that are larger than those in solutions but not heavy enough to settle out
suspensions
colloids
solutions
a heterogeneous mixture
containing a liquid in which visible particles settle is?
suspensions
colloids
solutions
what is the tyndall effect used for?
finding suspensions
finding colloids
finding solutions
What is flammability?
State of matter that determines the temperature of an element
Tendency of a substance to burn
A fancy word
Gasoline
What is a chemical property?
A characteristic of a substance that indicates whether it can undergo a certain chemical change
Looks and appearance of a substance
Law of Conservation of Mass
An element's chemical makeup, size, and appearance that determines the identity of an element
What is a chemical change?
A characteristic of a substance that indicates whether it can undergo a chemical change
The volume being decreased
Einstein's Theory
A change of one substance to another
Which is NOT a clue to indicating a chemical reaction is taking place?
Change in size
Cooling
Heat
Formation of bubbles or solids in liquids
Is weathering a chemical or physical change?
Physical
Chemical
Both
Neither
What is the Law of Conservation of Mass?
States objects only stay in motion if there is a force applied to it
the mass of all substances that are present before a chemical change equals the mass of all the substances that remain after the change
the total energy of a system is conserved no matter what
None of the above
What is the process for separating substances in a mixture by evaporating a liquid and recondensing its vapor?
vaporization
evaporation
distillation
boiling
Do liquids have the same exact boiling point?
Yes
No
What correlates to physical change
size
shape
state of matter
all of the above
What is physical change?
Change of composition and matter
Change in size, shape, or color
What are characteristics of a material that you can observe without changing the identity of the material?
chemical changes
chemical properties
physical changes
physical properties
