Upload
others
View
1
Download
0
Embed Size (px)
Citation preview
What causes
matter to change?
Lesson 1
Changes of State
Lesson 2
Mixtures
Lesson 3
Compounds and Chemical Changes
Lesson 4
Acids, Bases and Salts
Chapter 10 Menu
physical change
sublimation
melting point
boiling point
freezing point
thermal expansion
thermal
contraction
Lesson 1 Splash
How can matter change state?
freeze condense
melt evaporate
solid liquid gas
temperature
Lesson 1 a
When does matter change states?
solid
liquid
gas
liquid and gas gas liquid solid and
liquid
solid
Temperature
in °C
boiling point
melting point
Lesson 1 b
What are expansion and contraction?
100°C
50°C
Lesson 1 c
What would happen to a sample of water at
30˚ C. If it is heated until the temperature
reaches 120˚C?
Main Idea
As temperature increased, the water
would expand and more water would
evaporate. At 100˚C (212˚F), the water
would boil into gaseous water.
Beyond 100˚C, all of the water would
be a gas that would keep expanding.
Lesson 1 Main Idea Review
The _______________ is the temperature at
which a substance melts.
The _______________ is the temperature at
which a substance boils.
_________________ is the decrease in an
object’s volume due to a change in heat.
The form of an object is altered without
changing what type of matter it is in a
_______________.
thermal contraction melting point
Vocabulary
physical change boiling point
Thermal contraction
Lesson 1 Vocab Review a
freezing point sublimation
Vocabulary
The ________________ is the temperature at
which a substance freezes.
________________ is the increase in volume of
an object that changes as it gains heat.
________________ is the change of state
directly from solid to gas.
thermal expansion
Thermal expansion
Sublimation
Lesson 1 Vocab Review b
Is it a bad idea to put a glass bottle
full of water in a freezer? Support
your opinion with facts.
Water
expands as
it freezes
and will
break the
glass.
It is a bad
idea to put
a glass
bottle filled
with water
in the
freezer.
Fact or
Opinion
End of Lesson
Lesson 1 GO Review
Lesson 1 Vocab a
Lesson 1 Vocab b
Lesson 1 Vocab c
Lesson 1 Vocab d
Lesson 1 Vocab e
Lesson 1 Vocab f
Lesson 1 Vocab g
mixture
colloid
solution
solute
solvent
alloy
solubility
distillation
Lesson 2 Splash
What are mixtures
A mixture is a physical
combination of substances.
Lesson 2 a
What are solutions?
A solution is a mixture
with parts that blend so
that it looks the same
everywhere.
Lesson 2 b
How can you take mixtures apart?
Lesson 2 c
How are mixture used?
Lesson 2 d
What would tell you if a sample of matter is a
mixture?
Main Idea
If the parts have their own properties and can
be separated by physical means.
Lesson 2 Main Idea Review
A ___________ is a physical combination of
substances.
A ___________ is a mixture with parts that blend
so that it looks the same everywhere, even under
a microscope.
__________ is the process of separating liquids
by using evaporation and condensation.
A ___________ is the part of the solution in the
larger amount that dissolves the other substance.
mixture distillation
Vocabulary
solution
Distillation
solvent
Lesson 2 Vocab Review a
__________ is the maximum amount of a solute
that can dissolve in a solvent.
A ____________ is the part of a solution in the
smaller amount and that is dissolved.
An __________ is a solution of a metal and
another solid (often a metal).
A ___________ is a mixture like a suspension,
except that its parts do not settle.
solubility solute alloy
Solubility
colloid
Vocabulary
Lesson 2 Vocab Review b
Why would mixtures of gases
rarely form colloids? Making Inferences
End of Lesson
Clues What I Know What I Infer
Gas particles
are smaller
than particles
in colloids.
They mix too
easily into
solutions.
Gases rarely
form colloids.
Lesson 2 GO Review
Lesson 2 Vocab a
Lesson 2 Vocab b
Lesson 2 Vocab c
Lesson 2 Vocab d
Lesson 2 Vocab e
Lesson 2 Vocab f
Lesson 2 Vocab g
Lesson 2 Vocab h
compound
chemical
change
reactant
product
precipitate
Lesson 3 Splash
What are compounds?
+ = sodium
chlorine
sodium chloride
(table salt)
Lesson 3 a
What are chemical changes?
A chemical change
occurs when atoms
link together in new
ways to create a
substance different
from the original
substances.
Lesson 3 b
How can you spot a chemical change?
forms tarnish
releases gas
Lesson 3 c
How can you use chemical changes?
Lesson 3 d
What happens to the atoms in compounds
when they undergo a chemical change?
Main Idea
Atoms link in new arrangements
during a chemical change.
Lesson 3 Main Idea Review
The chemicals on the left side of a chemical equation are
called ________________.
A ________________ occurs when atoms link together in
new ways to create a substance different from the original
substances.
A ________________ is formed by the combination of two
or more elements.
A ________________ is a solid formed from the chemical
reaction of two solutions.
The chemicals on the right side of a chemical equation are
called ________________.
precipitate chemical change
Vocabulary
reactants products compound
Lesson 3 Vocab Review
Draw
Conclusions
Removed one
reactant during a
chemical reaction.
The chemical reaction
would stop.
What would happen if you
removed one of the reactants
during a chemical reaction?
End of Lesson
Lesson 3 GO Review
Lesson 3 Vocab a
Lesson 3 Vocab b
Lesson 3 Vocab c
Lesson 3 Vocab d
Lesson 3 Vocab e
acid
ion
base
acidity
alkalinity
neutralization
electrolyte
Lesson 4 Splash
What are acids and bases?
Acid Base
tastes sour and burns if you touch it tastes bitter
turns blue litmus to red feels soapy
reacts with metals to make hydrogen
gas
turns red litmus to blue
Lesson 4 a
How can indicators identify acids and bases?
acid base
Lesson 4 b
What are salts?
A salt is any compound made
of positive and negative ions.
+ +
hydrochloric
acid sodium
hydroxide
sodium chloride water (table salt)
acid base salt
Lesson 4 c
How can you tell acids and bases
apart?
Main Idea
Examine their chemical properties:
sour vs. bitter, litmus paper change,
reaction with metal vs. reaction with
fats.
Lesson 4 Main Idea Review
alkalinity neutralization
Vocabulary
______________ taste bitter and feel soapy.
Atoms or molecules that have gained or lost
electrons are called ____________.
____________ is the strength of a base.
____________ occurs when acids and bases
react to form salt and water.
bases ions
Bases
Alkalinity
Neutralization
Lesson 4 Vocab Review a
acids electrolyte
Vocabulary
____________ is the strength of an acid.
____________ taste sour and burn if you touch
them.
If a substance forms ions in water it is called an
___________.
acidity
Acidity
Acids
Lesson 4 Vocab Review b
Summarize What substance in your
kitchen are acids and bases?
End of Lesson
Acids Bases
vinegar baking soda in water
lemon juice milk of magnesia
cream of tartar solution liquid soap
juice from an onion milk
cola herbal tea
Lesson 4 GO Review
Lesson 4 Vocab a
ion (ī ΄әn) An electrically charged atom or
molecule with unequal numbers of protons and
electrons (p. 554)
Lesson 4 Vocab b
Lesson 4 Vocab c
acidity (ә·sid΄i·tē) The strength of an acid.
(p. 556)
Lesson 4 Vocab d
Lesson 4 Vocab e
Lesson 5 Vocab f
Lesson 5 Vocab g