PHYSICAL CHANGES
Physical changes are changes in the size, shape, state, or
appearance of matter. Changes in the size or shape, like cutting
a piece of paper into smaller pieces, is a physical change.
Another kind of physical change is when matter changes from
one state to another. When water freezes and makes ice, it is still
water. The shape and appearance of the water may change,
but it is still water. You can change a solid to a liquid by using
heat and melting it. If you have ice cubes
(solid) and leave it sitting on a counter, it’ll
melt and turn to water (liquid). If you have
seen a puddle of water that disappears,
the water in the puddle evaporates and
changes from a liquid to a gas. This type of
gas is called water vapor.
Fill in the blanks with the words from the word bank:
physical change
freezing
solid
water vapor
melting
1.
_______________ is a physical change in which water becomes a solid.
2.
A _______________ is a change in the appearance of matter .
3.
You can change a _______________ to a liquid by _______________ it.
4.
_______________ is what is made as a result of a puddle of water
evaporating.
PHYSICAL CHANGES
Physical changes are changes in the size, shape, state, or
appearance of matter. Changes in the size or shape, like cutting
a piece of paper into smaller pieces, is a physical change.
Another kind of physical change is when matter changes from
one state to another. When water freezes and makes ice, it is still
water. The shape and appearance of the water may change,
but it is still water. You can change a solid to a liquid by using
heat and melting it. If you have ice cubes
(solid) and leave it sitting on a counter, it’ll
melt and turn to water (liquid). If you have
seen a puddle of water that disappears,
the water in the puddle evaporates and
changes from a liquid to a gas. This type of
gas is called water vapor.
ANSWER KEY
Fill in the blanks with the words from the word bank:
physical change
freezing
solid
water vapor
melting
1.
Freezing is a physical change in which water becomes a solid.
2.
A physical change is a change in the appearance of matter .
3.
You can change a solid to a liquid by melting it.
4.
Water vapor is what is made as a result of a puddle of water evaporating.
let’s learn about
PHYSICAL CHANGES OF MATTER
Name: __________________
Match the words with the examples. Write the number next to the example.
1.
freezing
•
Leaving ice cubes on the counter.
2.
melting
•
Water placed in the freezer changes to ice.
3.
evaporation
•
The water puddle disappears.
Complete the paragraph. Find the answers in the reading
passage.
1.
Physical changes are changes in _______________, ________________,
_____________ and _______________________.
2.
When cutting a piece of paper you are changing its ______________ and
_______________.
3.
Water can change from one state to another but it is still _________________.
4.
Ice cubes are in a _________________ state.
5.
Water is in a _____________________ state.
6.
Water vapor is in a _________________ state.
Label the pictures with the correct state of matter.
_____________
______________
______________
let’s learn about
PHYSICAL CHANGES OF MATTER
Name: ANSWER KEY
Match the words with the examples. Write the number next to the examples.
1.
freezing
•
Leaving ice cubes on the counter.
2
2.
melting
•
Water placed in the freezer changes to ice.
1
3.
evaporation
•
The water puddle disappears.
3
Complete the paragraph. Find the answers in the reading
passage.
1.
Physical changes are changes in SIZE, SHAPE, STATE or APPEARANCE.
2.
When cutting a piece of paper you are changing its SIZE and SHAPE.
3.
Water can change from one state to another but it is still WATER.
4.
Ice cubes are in a SOLID state.
4.
Water is in a LIQUID state.
5.
Water vapor is in a GAS state.
Label the pictures with the correct state of matter.
GAS
SOLID
LIQUID
let’s learn about
PHYSICAL CHANGES
Name: __________________
Draw a line to match the objects BEFORE and AFTER their PHYSICAL changes.
BEFORE
AFTER
let’s learn about
PHYSICAL CHANGES
Name: ANSWER KEY
Draw a line to match the objects BEFORE and AFTER their PHYSICAL changes.
BEFORE
AFTER
chemical CHANGES
Chemical changes happen when matter changes into a different
kind of matter. An example of this is when you burn a piece of wood.
The wood changes to smoke and ash. This chemical change creates
heat and light. Another example of a chemical change is rust. If you
have ever seen rust on a car, this happens when the iron in the car
mixes with air to form another kid of matter – rust.
Silverware can also change its state of matter.
When old silver is exposed to air for a long
period of time, it forms a black covering on
it called tarnish. Chemical changes
usually occur when you see bubbling or
fizzing, or if you smell something or hear
a noise. Sometimes, none of these
things happen to cause chemical changes.
Fill in the blanks with the words from the word bank:
ash
rust
bubbling chemical change
fizzing
smoke
1.
_______________ occurs when metal from a car is exposed to air.
2.
A ____________________ is when matter changes into a different kind of
matter.
3.
Wood that was burned changes to ____________ and _____________.
4.
You might see _____________ or ___________ during a chemical change.
chemical CHANGES
Chemical changes happen when matter changes into a different
kind of matter. An example of this is when you burn a piece of wood.
The wood changes to smoke and ash. This chemical change creates
heat and light. Another example of a chemical change is rust. If you
have ever seen rust on a car, this happens when the iron in the car
mixes with air to form another kid of matter – rust.
Silverware can also change its state of matter.
When old silver is exposed to air for a long
period of time, it forms a black covering on
it called tarnish. Chemical changes
usually occur when you see bubbling or
fizzing, or if you smell something or hear
a noise. Sometimes, none of these
things happen to cause chemical changes.
ANSWER KEY
Fill in the blanks with the words from the word bank:
ash
rust
bubbling chemical change
fizzing
smoke
1.
rust occurs when metal from a car is exposed to air.
2.
A chemical change is when matter changes into a different kind of
matter.
3.
Wood that was burned changes to ash and smoke.
4.
You might see fizzing or bubbling during a chemical change.
let’s learn about
CHEMICAL CHANGES
Name: __________________
Draw a line to match the objects BEFORE and AFTER their CHEMICAL changes.
Provide labels for each picture.
BEFORE
AFTER
_________
_________
_________
_________
_________
_________
_________
_________
_________
_________
let’s learn about
CHEMICAL CHANGES
Name: ANSWER KEY
Draw a line to match the objects BEFORE and AFTER their CHEMICAL changes.
Provide labels for each picture.
BEFORE
AFTER
bonfire
cake
pear
Fireworks
cake
mixture
Fried egg
firecrackers
Rotten
pear
eggs
ash
let’s learn about
PHYSICAL AND CHEMICAL CHANGES IN MATTER
Name: __________________
Decide if the following changes are chemical or physical. Write down your answers.
EXAMPLE
1. Burning a piece of wood.
TYPE OF CHANGE
e.g. Chemical
2. Iron in a bicycle turns to rust.
3. Snow melting
4. Cutting a piece of paper
5. Silverware (knives and forks) tarnishing.
6. Breaking a glass window
7. Water in an ice tray freezes into ice cubes.
8. Bending a nail with a hammer.
9. Grape juice changing into wine.
10. Evaporation of a water puddle.
I tell bad
chemistry
jokes…
Because all the
good ones
Argon (Ar)
tell
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I tr
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chem …
jokes
is n o
e
r
e
h
B u t t c ti o n .
re a
Kno w
any g
ood
chem
is t r y j
okes?
N a (S o
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let’s learn about
PHYSICAL AND CHEMICAL CHANGES IN MATTER
Name: ANSWER KEY
Decide if the following changes are chemical or physical. Write down your answers.
EXAMPLE
TYPE OF CHANGE
1. Burning a piece of wood.
e.g. Chemical
2. Iron in a bicycle turns to rust.
CHEMICAL
3. Snow melting
PHYSICAL
4. Cutting a piece of paper
PHYSICAL
5. Silverware (knives and forks) tarnishing.
CHEMICAL
6. Breaking a glass window
PHYSICAL
7. Water in an ice tray freezes into ice cubes.
PHYSICAL
8. Bending a nail with a hammer.
PHYSICAL
9. Grape juice changing into wine.
CHEMICAL
10. Evaporation of a water puddle.
PHYSICAL
I tell bad
chemistry
jokes…
Because all the
good ones
Argon (Ar)
tell
o
t
y
I tr
ica l
chem …
jokes
is n o
e
r
e
h
B u t t c ti o n .
re a
Kno w
any g
ood
chem
is t r y j
okes?
N a (S o
di um )