Unit 4- The Nature of
Matter
Unit 4- Lesson 1 Vocabulary
Matter
Temperature
Liquid
Volume
Solid
Gas
Define each word and complete the
interactive glossary.
Develop Science Concepts
Unit 4- Lesson 1
In your own words explain what matter is.
Give me three examples of liquids.
Give me three examples of solids.
Give me three examples of gasses.
Explain how matter can change state (from
liquid to gas, from solid to liquid, etc…)
Do the Math- Use Division
Food
Mass (g)
Volume (cm3)
gelatin
75
100
pudding
90
100
whipped cream
50
100
Density
(g/cm3)
Unit 4- Lesson 2
Physical change
Chemical change
Reaction
Define each word and complete
the interactive glossary.
What is a Chemical Change?
 What is a Chemical Change?
 A chemical change is when 2 substances are mixed together to
form something new. This differs from a physical change, which
is a substance changing physical forms but still retains its
original properties. Sometimes when a mixture is made it can be
hard for kids to tell if a chemical change has occurred. Such as
when mixing sugar and water, the sugar appears to be no
longer present so children assume a chemical change has
happened when in reality the mixture can be separated back
into it's original substances. There are 3 main clues that a
chemical change has occurred.
 There is a formation of gas which can be seen by a fizzing or
bubbling
 The reaction will cause heat, light or odor to be emitted
 A solid is formed during the change
Unit 4- Lesson 2
Identify Types of Changes
Change
Bacteria decomposes leaves
Newspaper turns yellow in sun
Water evaporates
Gasoline burns in car engine
Bagel toasting
Crumpling aluminum foil in ball
Sharpening pencil
Baking a loaf of bread
Type
The process of decomposition — the breakdown of raw organic materials to
a finished compost — is a gradual complex process, one in which both
chemical and biological processes must occur in order for organic matter to
change into compost. It is a chemical change because live organisms that
are breathing oxygen are taking part in the decomposition process.
Newspapers turning yellow… Bleaching is usually an oxidation reaction,
whether it is initiated by chemical bleach or by ultraviolet rays in sunlight.
The result is that the formerly colored ink or pigment loses its intensity and
may eventually become almost white. The chemicals, which were originally
colored, have been transformed into new chemicals.
Water evaporating is a change of state. Water changes from liquid into a
gas. The water is still water, it’s just in a different form.
Gasoline burning in an engine… Energy is produced, which is what is used
to power the car. Energy transfer is an indicator of a chemical change. A gas
is produced, namely CO2, H2O, and many other byproducts. A gas given off
is an indicator of a chemical change.
You cannot change burned toast back to regular bread.
This is a chemical change; meaning, it changes the identity.
A physical change, cutting a piece of wood, changes the appearance but not
the identity. Another example of a chemical change would be burning a piece
of wood.
Crumpling aluminum foil into a ball is changing the appearance of the foil but
not changing the type of matter. The type of matter remains the same, it just
looks different.
Sharpening a pencil…. Another example of changing the appearance of
something but the matter itself remains the same. The led was always inside
the pencil, you are just changing the shape so you can use it.
Baking a loaf of bread… this is an instance where the yeast is reacting with
the flour and other ingredients that is causing it to rise and change. This is an
example of a chemical change.
Unit 4- Lesson 4 Vocabulary
Mixture
Solution
Define these words and
complete your interactive
glossary.
Separating Mixture Video
 https://app.discoveryeducation.com/builders/boards?assetGu
id=0C17CA33-EAA2-A377-42010311C5EE67D8&includeHeader=true&layout=default
Separating Mixtures- Choose the best
method (magnetism, filtration, sieve,
evaporation, density, melting)
Mixture
Some sugar from sugar water
Rice grains mixed with flour
Clear water from muddy water
Some salt from salty water
Sawdust mixed with sand
Steel buttons mixed with plastic
buttons
Gold from a gold and silver ring
Separation Method
Separating Mixtures- Choose the best
method (magnetism, filtration, sieve,
evaporation, density, melting)
Mixture
Separation Method
Some sugar from sugar water
evaporation/melting
Rice grains mixed with flour
sieve
Clear water from muddy water
filtration
Some salt from salty water
evaporation
Sawdust mixed with sand
density
Steel buttons mixed with plastic
buttons
magnetism
Gold from a gold and silver ring
melting
Now try it yourself on
your worksheet. A
colander is the same
as a sieve(look at the
top of the computer
cart for what a
colander looks like).
Make sure to complete
the science
investigation on the
back of the paper, as
well as any questions it
asks you to answer.
You need to design the
experiment, and
explain in a step by
step fashion.
If you finish early you
may begin Unit 4
Lesson 4 brain check.
Virtual Lab 5
https://wwwk6.thinkcentral.com/content/hsp/scien
ce/fusion/fl/gr05/teacher_gateway_97
80547386003_/player.html?buid=SCI
_FL12_DLT_G05U04L05_000_EN
Unit 4- Lesson 6 Vocabulary
Atom
Element
Atomic theory
Compound
Define these words and complete the
interactive glossary.
Proton
Electron
Brain Pop Connections
 https://www.brainpop.com/science/matterandchemistry/conse
rvationofmass/
 https://www.brainpop.com/science/matterandchemistry/atoms
/
 https://www.brainpop.com/science/matterandchemistry/matte
rchangingstates/
 https://www.brainpop.com/science/matterandchemistry/prope
rtychanges/
 https://www.brainpop.com/science/matterandchemistry/states
ofmatter/
Brain Pop Connections
 https://www.brainpop.com/science/matterandchemistry/comp
oundsandmixtures/
 https://www.brainpop.com/science/matterandchemistry/atomi
cmodel/
 https://www.brainpop.com/science/matterandchemistry/atoms
/