ministry of education grade 5 consolidated …
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MINISTRY OF EDUCATION
GRADE 5 CONSOLIDATED WORKSHEET
SUBJECT: SCIENCE
WEEK 17
TOPIC: ENERGY - SUB TOPIC: USES OF HEAT
Name: _____________________________ Date: _________________________
FACT / TIP:
Uses of heat
Heat is very important in our daily life.
Heat helps us to do things such as:
Cooking
Drying clothes
Ironing
Keeping our bodies warm.
The sun‟s heat keeps living things and the
environment warm.
Plants use heat from the sun to help make food.
Heat is also used to make electricity.
The heat has many usages in industries such as; making and
processing food and the manufacture of the glass, paper,
plastic etc.
Pictures showing the uses of heat
ON YOUR OWN:
1. _______________ is very important to our daily lives.
TRUE OR FALSE
2. Heat helps up to cook our food. ____________________________
3. Plants do not depend on heat to make their own food.
___________________
4. Heat is used to make electricity. _____________________
5. In the below, draw a picture to show one of the uses of heat.
HOMEWORK
List FOUR other uses of heat
MINISTRY OF EDUCATION
GRADE 5 CONSOLIDATED WORKSHEET
SUBJECT: SCIENCE
WEEK 17
TOPIC: ENERGY -SUB TOPIC: HEAT ENERGY
Name: _______________________ Date: ______________________
FACTS / TIPS: Conserve means to save.
Conserving heat energy.
1. Use the sun - It‟s the most readily available source of heat and it‟s
the cheapest. We can use the sun to:
dry clothes instead of using a dryer.
warm our home by opening doors so the warm air can flow
through our homes rather than using fans and ac units.
Dry your hair naturally or by using a towel instead of using a
blow dryer etc.
2. Don't leave your fridge door open. The longer it‟s open, the more
energy it takes to get it back to its correct temperature.
3. If you‟re using a washing machine to wash your clothes, wash full
loads.
4. Use manual tools in the kitchen e.g., whisking can be done by
hand.
5. Unplug electrical devices when not in use e.g., iron, electrical
kettle, toaster etc.
ON YOUR OWN:
1. Define the term “conserve”
______________________________________________________________
2. List three ways we can conserve heat
______________________________________________________________
______________________________________________________________
______________________________________________________________
3. The most readily and cheapest available source of heat is the
_____________.
4. Design a poster on the conservation of heat.
HOMEWORK
Use the poster to educate your family members on the conservation of
heat.
MINISTRY OF EDUCATION
GRADE 5 CONSOLIDATED WORKSHEET
SUBJECT: SCIENCE
WEEK 17
TOPIC: ENERGY SUB TOPIC: HEAT ENERGY
Name: ___________________________ Date: _________________________
Read the questions carefully then insert the correct answers.
1. List two uses of heat
______________________________________________________________
______________________________________________________________
2. The most readily and cheapest available source of heat is the
_____________.
3. Another name for heat energy is ____________________________.
4. Plants use ____________ from the __________ to make food.
5. Define the term “conserve”
_________________________________________________________
6. One way we can conserve heat energy is by
________________________________________________________________
_________________________
TRUE OR FALSE
7. We can conserve heat by using an electrical mixer to mix cake
batter. ___________________
8. Heat is used to manufacture plastic. __________________________
9. Mrs. Singh saves heat by leaving her iron plugged in when not in
use. _____________________
10. The sun‟s heat keeps living things and the environment warm.
____________________________
MINISTRY OF EDUCATION
GRADE 5 CONSOLIDATED WORKSHEET
SUBJECT: SCIENCE
WEEK 17
TOPIC: ENERGY SUB TOPIC: HOW HEAT TRAVELS
Name: ________________________ Date: ___________________________
FACTS / TIPS:
Heat moves when objects have different temperatures. It always
moves in the same direction: from hot to cold.
E.g., if you touch a hot stove, you feel the heat moving into your body.
There are three different ways that heat can move. They are:
1. Conduction – heat travels through solids by conduction e.g.,
when a spoon is placed in hot water.
2. Convection- Heat travels through liquids and gases by
convection e.g., the air above a candle flame feels warm
because hot air has moved upward from around the flame.
3. Radiation-Heat travels across space by radiation e.g., the heat
which travels from the sun to the earth and heat felt by someone
standing a distance away from a hot stove. Microwaves heat
your food using radiation, too.
Picture showing how heat travels.
ON YOUR OWN:
1. Heat transfers from an area of ____temperature to an area of ___
temperature.
2. There are ____________ different ways that heat can move.
3. Two ways heat can move are _______________________ and
________________________________.
4. In your own words, explain any one of the ways mentioned above.
_________________________________________________________________
_________________________
_________________________________________________________________
_________________________
5. One example of radiation is
_________________________________________________________________
_________________________
6. Which of the following is the best example of conduction?
a) A light bulb warming a lampshade
b) An egg cooking in a frying pan
c) Water boiling in a pot
d) Gases circulating in the atmosphere
HOMEWORK
EXPERIMENTS – HOW HEAT TRAVELS
With the assistance of an adult.
CONDUCTION
Materials needed
1. A hot cup of coffee
Procedure
2. Hold the cup of coffee for a few minutes.
3. Record your observation.
N.B
You will be able to feel the warmth transferring to your cool hands. This
demonstration shows heat conduction. When we touch the hot cup,
the heat flows from the hotter object (cup) to the colder one (our
hands).
CONVECTION
Materials needed
1. Clear container or jar
2. Water
3. Freezer
4. Coffee mug or other container that can withstand heat
5. food colouring
6. Spoon
7. Dropper
Procedure
1. Fill the clear jar halfway with cold water.
2. Place the jar in the freezer for 15 minutes. You don‟t want the
water to freeze.
3. Fill the coffee mug about ¼ full with hot water.
4. Add 10 drops of food colouring to the hot water and stir.
5. Remove the jar from the freezer and set it on table. Wait until the
water is calm
6. Fill the dropper with hot coloured water.
7. Lower the tip of the dropper until it is near the bottom of the clear
jar.
8. Carefully release two drops of hot coloured water onto the cold
water. Observe what happens, looking at the side and top of the
jar.
9. Add ten more drops, two drops at a time, observing what
happens between each.
10. Once you have added all the hot coloured liquid drops,
observe the jar for an additional five minutes.
11. Record your observations.
RADIATION
Materials needed
1. A black shirt
2. A white shirt
Procedure
1. Spread both shirts on a level surface in the sunlight.
2. After 15 to 20 minutes, feel the shirts.
3. Record your observations.
MINISTRY OF EDUCATION
GRADE 5 CONSOLIDATED WORKSHEET
SUBJECT: SCIENCE
WEEK 17
TOPIC: ENERGY SUB TOPIC: CONDUCTORS AND INSULATORS
Name: ___________________________ Date: _________________________
FACTS / TIPS:
DEFINITION
Conductors of heat are materials which
allow heat to pass through them easily.
Examples:
aluminum
Iron
Copper
Insulators of heat are materials which do not
allow heat to pass through them easily.
Examples
Wood
Plastic
Styrofoam
ON YOUR OWN:
1. Complete the table below.
HOMEWORK
Identify other conductors and insulators of heat found in your home.
MINISTRY OF EDUCATION
GRADE 5 CONSOLIDATED WORKSHEET
SUBJECT: SCIENCE
WEEK 17
TOPIC: ENERGY -SUB TOPIC: SIMPLE ELECTRICIAL CIRCUIT
Name: _______________________ Date: ____________________________
FACTS / TIPS:
DEFINITION
Electricity is a form of energy. It is the flow of tiny particles called
electrons and protons. It is the energy you get when electrons flow from
place to place.
A circuit is a closed path that allows electricity to flow from one point to
another. Electricity only flows in a complete circuit; thus, any gaps
would prevent its flow.
Parts of a simple circuit
Battery/ Generator - In a circuit the electricity is provided by a
battery or generator.
Wires - The electricity flows in the wires and is used by light bulbs,
radios, televisions, irons and other electrical appliances.
Switches - open and close gaps in a circuit. They also control the
flow of electricity.
Diagram showing a simple circuit.
ON YOUR OWN:
1. Draw the parts of a simple circuit.
2. Two parts of a circuit are____________________________.
3. List two forms of energy.
_________________________ ________________________
4. What is a circuit?
____________________________________________________________
5. Electricity is the flow of tiny particles called ____________ and
_________________.
HOMEWORK
MAKING A SIMIPLE CIRCUIT
Under the supervision of an adult
Materials Needed
1. Battery
2. Small bulb
3. 2 Coated/insulated wires
4. Electrical tape
5. 6” x 6” Ply board
6. Glue Gun
Procedure
1. Using the glue gun, paste the battery, laying down
to one end of the ply board.
2. Strip about 2 inches of insulating material off both
ends of each wire.
3. Attach one end of the wire to the negative or
smooth end of the battery, using a small piece of
electrical tape to keep the metal wire touching the
battery.
4. Attach the other piece of wire to the positive end
of the battery.
5. Using the electrical tape, tape the wires on the ply
board to keep them intact.
6. Attach the end of each wire to the bulb, use
insulation tape to keep it in place.