1 What Is Heat? / What Is Temperature? Consolidation Worksheet

Transcription

Heat and Temperature
Name:
Consolidation Worksheet
Class:
1
Date:
What Is Heat? / What Is Temperature?
1.
Identify and put a tick (ü) in the boxes next to the pictures below
that shows heat is useful.
a.
b.
c.
d.
e.
f.
© 2012 Alston Publishing House Pte Ltd
Science SMART Teacher’s Guide Grade 4
185
2. The diagram below shows four glasses of water.
Glasses P and Q have the same amount of water. Glasses R and S
have the same amount of water.
The water in Glasses P and R are at the same temperature. The
water in Glasses Q and S are at the same temperature.
Fill in the blanks below with the correct answers.
186
30 ºC
60 ºC
P
Q
30 ºC
60 ºC
R
S
a. The water in Glass
has the most heat.
b. The water in Glass
has the least heat.
Additional Teacher’s Resources
Name:
Class:
2
Date:
How Does Heat Travel?
a. Ari touched a metal spoon. The metal spoon felt cold.
In the picture below, draw an arrow to show the direction of heat flow.
b. Tom placed a metal spoon in a mug of hot coffee. The metal spoon
felt hot.
c. Complete the statement below.
If two objects are near each other and one object is hotter than
the other, then heat will flow from the
object to the
object.
187
Name:
Class:
Date:
3
What Happens When an Object Gains
or Loses Heat?
It is common to see electrical cables sagging on very hot days as
shown below. Fill in the blanks with the appropriate words to explain why
this happens.
heat
On a very hot day, the metal wires in the cable
quickly. This causes the metal wires to
. The wires thus
in length and width, causing them to sag.
188
Name:
Class:
Date:
4
What Are Good and Poor Conductors
of Heat?
Study the classification chart below and fill in the blanks with the correct
words. Use the words in the box below to help you. Each word can be
used only once.
Copper
Gas
Good
Poor
Liquid
Silver
Plastic
Wood
Materials
conductors of heat
conductors of heat
may be
such as
• Iron
Solid
• Steel
such as
• Styrofoam
such as
such as
Water
Oxygen
•
•
•
•
189
Name:
Class:
Fun and
Games
Date:
Crossword Puzzle!
Complete the crossword puzzle using the clues given below.
1
2
3
4
5
7
6
N
H
8
9
G
10
T
11
12
Down:
1.
Our sense of
3. Wood is a
cannot measure temperature accurately.
conductor of heat.
4. Heat is a form of
6.
is a measure of how hot or cold an object is.
10. Metals can
190
.
when heated.
Across:
2. Heat is used to
our food.
5. When two objects of different temperatures are in contact, heat will
travel from the
object to the other object.
7. The instrument used to measure temperature accurately is a
8. Temperature is measured in the unit
9. A
.
Celsius (°C).
, when used with a temperature sensor, can be used to measure
and record temperatures.
11. The Sun is an important
12. A hotter object will have a
of heat.
temperature.
191
Name:
Class:
Date:
Exam Practice
Process skills: Observing, Comparing, Analysing
Rita’s mother prepared iced tea by pouring hot tea into a glass
containing ice cubes.
a. How will the temperature of the hot tea change after it is poured
over the ice cubes?
[1 mark]
b. Fill in the blanks with the words ‘gained’ or ‘lost’.
[2 marks]
When the hot tea is poured over the ice cubes, heat is
by the ice cubes and
by the hot tea.
c. What change will the ice cubes undergo when the hot tea is poured
over them?
[1 mark]
192
d. In which of the cups below should Rita’s mother keep the iced tea to
keep it cold for as long as possible? Circle the correct answer.
[1 mark]
Polystyrene cup
Ceramic cup
Steel cup
Glass cup
Hint:
The iced tea will stay cold if heat from
the surroundings is not conducted to
it quickly. Which of the materials will
conduct heat the slowest?
193
1
Class:
Date:
1.
e.
f.
d.
c.
✓
b.
a.
Identify and put a tick (ü) in the boxes next to the pictures below
that shows heat is useful.
What Is Heat? / What Is Temperature?
Name:
✓
✓
Answers to Additional Teacher’s Resources
has the most heat.
has the least heat.
S
P
b. The water in Glass
S
60 ºC
Q
60 ºC
a. The water in Glass
R
30 ºC
P
30 ºC
Fill in the blanks below with the correct answers.
The water in Glasses P and R are at the same temperature. The
water in Glasses Q and S are at the same temperature.
Glasses P and Q have the same amount of water. Glasses R and S
have the same amount of water.
2. The diagram below shows four glasses of water.
Chapter 3
194
195
Date:
colder
object.
the other, then heat will flow from the
object to the
hotter
If two objects are near each other and one object is hotter than
c. Complete the statement below.
Arrow should
be drawn from
the spoon to the
hand/fingers.
b. Tom placed a metal spoon in a mug of hot coffee. The metal spoon
felt hot.
Arrow should be
drawn from the hand/
fingers to the spoon.
a. Ari touched a metal spoon. The metal spoon felt cold.
Class:
2
How Does Heat Travel?
Name:
3
Class:
Date:
expand
heat
. The wires thus
gain
in length and width, causing them to sag.
Heat and
Temperature
increase
quickly. This causes the metal wires to
On a very hot day, the metal wires in the cable
It is common to see electrical cables sagging on very hot days as
shown below. Fill in the blanks with the appropriate words to explain why
this happens.
What Happens When an Object Gains
or Loses Heat?
Name:
4
Class:
Date:
Our sense of
3. Wood is a
1.
Down:
H
T
I
H
11
5
T
E
9
8
R
R
T
G H
E
R
A
R
.
when heated.
is a measure of how hot or cold an object is.
10. Metals can
L
E
R C E
T
E G R
D A
D
P
R M O M E
S O U
E
E
H O T
O
6
O
P
U
3
C
C O O K
T
E
Y
G
R
E
N
E
10
D
N
A
P
X
O G G E
E
T
4
Date:
cannot measure temperature accurately.
12
7
2
1
conductor of heat.
6.
• Copper
• Silver
• Steel
• Iron
• Plastic
Oxygen
such as
Gas
such as
Good
conductors of heat
Plastic
Wood
4. Heat is a form of
Materials
Liquid
Silver
Crossword Puzzle!
Class:
R
Complete the crossword puzzle using the clues given below.
Fun and
Games
Name:
• Wood
Water
such as
such as
• Styrofoam
Liquid
Good
Poor
Solid
may be
Poor
conductors of heat
Copper
Gas
Study the classification chart below and fill in the blanks with the correct
words. Use the words in the box below to help you. Each word can be
used only once.
What Are Good and Poor Conductors
of Heat?
Name:
Chapter 3
196
197
our food.
object to the other object.
Celsius (°C).
.
12. A hotter object will have a
11. The Sun is an important
temperature.
of heat.
, when used with a temperature sensor, can be used to measure
and record temperatures.
9. A
8. Temperature is measured in the unit
7. The instrument used to measure temperature accurately is a
travel from the
5. When two objects of different temperatures are in contact, heat will
2. Heat is used to
Across:
Class:
Date:
by the ice cubes and
lost
by the hot tea.
[2 marks]
Heat and
Temperature
cubes will change into the liquid state.
The ice cubes will melt. / The ice cubes will turn into water. / The ice
c. What change will the ice cubes undergo when the hot tea is poured
over them?
[1 mark]
gained
When the hot tea is poured over the ice cubes, heat is
b. Fill in the blanks with the words ‘gained’ or ‘lost’.
The temperature of the hot tea will decrease.
a. How will the temperature of the hot tea change after it is poured
over the ice cubes?
[1 mark]
Rita’s mother prepared iced tea by pouring hot tea into a glass
containing ice cubes.
Process skills: Observing, Comparing, Analysing
Exam Practice
Name:
Glass cup
Steel cup
The iced tea will stay cold if heat from
the surroundings is not conducted to
it quickly. Which of the materials will
conduct heat the slowest?
Hint:
Ceramic cup
Polystyrene cup
d. In which of the cups below should Rita’s mother keep the iced tea to
keep it cold for as long as possible? Circle the correct answer.
[1 mark]
Chapter 3
198
Glossary
Contract
Decrease in size or volume
Degree Celsius
A unit of measure for temperature
Expand
Increase in size or volume
Good conductor
A material that allows heat or electricity to pass through quickly
Heat
A form of energy that is transferred due to difference in temperature
Poor conductor
A material that does not allow heat or electricity to pass through
quickly
Source
Where something comes from
Temperature
A measure of how hot or cold a substance or place is
Thermometer
An instrument used to measure temperature accurately
Heat and
Temperature
Chapter 3:
199

1 What Is Heat? / What Is Temperature? Consolidation Worksheet

Transcription

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