Three
Class Science Notes First Term
Subject: Science First Term Class Three
(Subjective & Objective)
Chapter 1 : Healthy living
Q1. What is diet?
Q2. Why we need food?
Q3. Define a balanced diet?
Q4. What are nutrients? Name them
Q5. Why food should be stored?
Q6.Write different ways of storing food.
Q7. How can we keep our teeth clean and healthy?
Q8. Write down the names and functions of teeth.
Q9. Define herbivores, carnivores and omnivores. Give their examples.
Q10. What is the importance of exercise in our daily life?
Diagrams: Labeling. Pg. 17.
Identify pgs 3,25,26,27,28
Fill in the blanks
1.
The food we eat is called
…………………….
2.
Eating food that is stale
can make us ………………………
3.
……………………. Are animals which
have sharp pointed canines for gripping and tearing meat.
4.
Yoga improves the movement
of muscles and ……………………..
5.
……………………. Can cause tooth
decay and gum disease.
6.
A…………………….. is a tool for
collecting information.
7.
Sugary and starchy types of
foods are rich in …………………………
8.
To have a healthy life we
should have a …………………….. diet.
9.
Fruits and vegetables are
rich in ……………………… and minerals.
10.
Exercise help those who are
overweight to ……………………… weight.
Choose the best answer
1.
An adult has a set of ……………………. Permanent teeth. (36, 32)
2.
A …………………… eats both plants
and animals ( gorilla, wolf )
3.
We should eat little from
this food group. ( fats, proteins )
4.
Walking, cycling, jogging,
swimming makes our muscles and ………………… strong. ( heart, joint)
5.
A new born baby has
………………….. teeth. ( no, some )
6.
There are eight incisors at
the …………………….. of our mouth. ( back,
front )
7.
A deer has a flat row of
……………………. To chew food. ( canines,
molars )
8.
Food kept in containers can
be stored for many months in a ………………… dry place. (hot, cool)
9.
These type of food do not
go bad quickly. ( milk, fish ____ nuts,
biscuits )
10.
……………………. And sugar stuck
on teeth can cause plaque to from. (
food, water )
Write
“T” for true and “F” for false
1.
Once a can is opened the
food must be stored in a refrigerator [ ]
2.
Keeping our teeth clean
prevent from tooth aches. [ ]
3.
We should exercise at least
for 30 minutes every day. [ ]
4.
Regular exercise keeps us
fit both in mind and body. [
]
5.
Drink fruit juices instead
of sugar. [ ]
Match the following nutrients with
their functions
|
A |
B |
|
Protein |
Fight against disease and keep us healthy |
|
Fats |
Give us a lot of energy |
|
Carbohydrates |
Provide us energy and help us to grow |
|
Vitamins & minerals |
Provide energy and keep us warm |
Chapter 2: Fish and Frogs
(Subjective)
Q1. How streamlined body of a fish help it to move in water.
Q2. What are the characteristics of a fish?
Q3. Why a frog can jump very far?
Q4. Write down the characteristics of a frog?
Q5. Where do frogs live?
Q6. Where do fish live?
Q7. What is the diet of small and big fish?
Q8. How are marsupial frogs special in that they take care of their
eggs or young unlike other frogs?
Diagrams: Labeling. Pgs 44,48,52. Work page 54
Choose the best answer
1.
Fish which live in
……………………. Water can be found in seas and oceans. ( fresh, sea )
2.
Frogs are
…………………………….. ( Amphibians, fish )
3.
A ……………….. do not have a body
covering. ( fish, frog )
4.
A ………………………… is a kind of
fish. ( jellyfish, seahorse )
5.
Small fish may eat algae or
tiny living things called ……………………….. (
plankton, plant )
6.
Adult frogs are
……………………… ( carnivores, herbivores )
7.
Frogs breathe and absorb
water through their ………………………. ( lungs.
Skin )
8.
A ……………………. is able to
breathe with its lungs. ( tadpole,
froglet )
9.
Tadpole use ……………………. to
swim in water. ( tail, fins )
10.
Fish have ……………………. on
their bodies for protection. ( fur,
scales )
Fill in the blanks
1.
All living things
need………………… , ………………… and …………………… to
live.
2.
Fish and frog belong to a
group of animals called ……………………….
3.
Some frogs have long sticky
………………………. For catching insects.
4.
Most fish have ……………………..
bodies for moving quickly and smoothly.
5.
The blending in of animals
with their surroundings is called ……………………….
6.
The ……………………… legs of a
frog develop first.
7.
When a tadpole develops
into a frog, its till …………………………..
8.
A fish move with the help
of its ……………………… and ………………………
9.
Fish and tadpole breathe
with ………………………..
10.
Tadpole feed on …………………..
and water plants.
Write “T” for true and “F” for false
1.
Fish and frogs lay eggs
with shells.
[ ]
2.
Guppies mollies and swordtail
give breathe to their young alive. [ ]
3.
Shell fish, jelly fish,
star fish are not actually fish. [ ]
4.
Tadpole and froglets are
carnivores. [ ]
5.
The stone fish looks like
stones. [
]
Chapter 3:
Force (Subjective)
Q1. Define a force.
Q2. Give five examples of forces from your daily life.
Q3. Define a magnetic force of : a. attraction b. repulsion
Q4. What are different types of forces?
Define each of them
Q5. What can force do?
Q6. How can we measure a forces?
Q7. Name the things can that exert force.
Q8. Why do the hairs on your arm stand when you touch a T.V screen?
Diagrams: Identify pg: 61,68,70,73,75. Work page 64
Fill the blanks
1.
…………………………. Is a contact
force.
2.
Two like poles ………………………
each other.
3.
Forces can be measured by
instruments called ……………………….
4.
We cannot stay up in air,
as ……………………… pulls us down.
5.
A force can change the
………………………. Of a moving object.
6.
Magnetic force, electric
force and gravity are …………………….. force.
7.
A sliding coin slows down
due to ……………………..
8.
A …………………….. is a pull or a push.
9.
Forces are measured units
called ……………………….
10.
The ……………………. Of an object
is the gravitational force acting on it.
11.
Kicks and throws are
……………………..
12.
Flying of a kite is
……………………….
Choose the best answer
1.
Objects in the air fall on
the earth due to ………………………… ( gravity,
friction )
2.
A …………………… can act on
another object without touching it. (
contact, non-contact )
3.
Muscles and machines can
exert …………………… ( force, things )
4.
Friction acts in ……………………….
Direction. ( opposite, same )
5.
A toy car movies when we
give a ………………………. ( pull, push )
6.
When we rub a balloon on
our clothes it become ……………………… charged.
(
magnetically, electrically )
7.
Magnets can attract objects
made of …………………………. Material. (
metallic, magnetic )
8.
When we walk there is
…………………….. between our shoes and the ground.
( friction, attraction )
9.
A force meter is also
called a ………………………. ( Volta meter, Newton
meter )
10.
Friction can ……………………. The
moving objects. ( speed up, slow down )
Write
“T” for true and “F” for false
1.
The force of typhoon or an
earth quake can damage many things. [ ]
2.
Unlike poles do not attract
each other. [ ]
3.
The unit Newton is named
after of the famous scientist sir Isaac Newton. [ ]
4.
Many actions in our daily
life involve forces. [ ]
5.
A spring balance is not
used to measure the weight of objects. [ ]
Chapter
4: Materials and their properties (Subjective)
Q1. Define flexible and
inflexible materials.
Q2. What is a fair test?
Q3. How metals can be made
stronger?
Q4. Why glass should be handled
with care?
Q5. What properties plastic have
that are used to make electrical plugs?
Q6. Why is it important to have
a diversity of materials?
Q7. What kind of material is
used to make electrical wires?
Diagrams: Identify pg.77, 101. Label
pg 102.
Fill in the blanks
1.
…………………………. Is used to make
water hoses and mats.
2.
The frame of a bicycle is
made of ………………………. Because it is hard and strong.
3.
A kitchen towel is made of
an ………………………….. material that can soak up water.
4.
Glass is used to make
camera as it is ………………………..
5.
Concrete is combined with
…………………………. To make it strong.
6.
……………………….. can also be
improved to make them suitable for their uses.
7.
……………………….. is the hardest
material in the world.
Match the following
|
1. Flexibility |
a. Ability to support heavy load. |
|
2. Hardness |
b. Ability to soak up water. |
|
3. Strength |
c. Ability to bend easily. |
|
4. Absorbency |
d. Ability to withstand scratches. |
Match
the following
1.
Which of these can carry a
heavier load without breaking? (paper
bag, plastic bag )
2.
Glass is inflexible and
………………………… ( soft, hard )
3.
………………………. Are man-made
materials. ( plastic, metals )
4.
Plastic that are used to
make cling wrap are flexible, light and ……………………….
( absorbent, waterproof )
5.
A bicycle is made of ………………………….
Materials. ( same, difference )
6.
………………………… is used as
building material and to make furniture.
( plastic, wood )
7.
A…………………………. is a habitat
that has high rainfall and supports a diversity of flora and fauna.
8.
…………………………. Can cause soil
erosion and organism to die.
9.
A ………………………….. is a place
where an organism lives.
10.
A food chain starts with a
…………………………. Such as a plant which can make its own food.
Write “T” for true and “F” for
false
1. Clearing forests and developing them into farmlands destroys
habitats. [ ]
2. A desert is home to many organisms which live in water like
fish, corals.
[ ]
3. A community consists of population living together in a habitat. [ ]
4. Cactus stores water in its leaves.
[ ]
5. The streamlined body of fish enables it to move quickly and
smoothly in water. [ ]
6. The arctic is a day place with little rainfall and few plants
and animals.
[ ]
Chapter
2 : Moving and growing (Subjective)
Q1. What are bones?
Q2. Give the scientific names of collar bone, skull. Shoulder blade,
shin bone, back bone, and hip bone.
Q3. What are the function of skeleton?
Q4. Define
exoskeleton and endoskeleton.
Q5. Name
animals: a without skeleton. B with exoskeleton . c.
with endoskeleton.
Q6. Define
joint why are they important for the
human body ?
Q7. How many types of joints are present in the human body explain each
with examples.
Q8. Give two examples of joints in the human body that behave like door
hinges.
Q9. What are the muscles of arm called?
Q10. How many muscles are there in human body?
Q11. Define tendons.
Q12. Which is the largest and strongest tendon and where is it found?
Q13. What is the importance of skeletal muscles?
Diagrams: Labeling Pg.
53, 56, 57, Identify joints. Pg 47
Objective Part
Choose the best answer
1.
An adult has …………………………..
bones . ( 300, 206 )
2.
Bones are made up of
………………………… ( calcium, protein )
3.
Giraffe has same number of
bones in its ……………………… as in human beings.
( neck, legs )
4.
We can turn head, move arms
and legs due to ………………………… ( flesh,
joints )
5.
The biceps and triceps work
………………………. To move our arms. ( in
pairs, separately )
6.
The smallest bone in the
human body is called ……………………… ( pelvis,
stirrup )
7.
When you straighten your
arm…………………… muscles relax. ( biceps,
triceps )
8.
A ………………………. does not have
arm and leg bones. ( snake, bat )
9.
The largest and strongest
bone in our body is ………………………. (
radius, femur )
10.
……………………… joint help us to
rotate in all directions. ( hinge, ball
& socket )
Fill in the blanks
1.
Muscles ………………………… and
expand to enable us move.
2.
The human ………………………. Is
made up of bones.
3.
……………………… is made in the
bone marrow.
4.
The strongest tendon in the
human body is the ………………………. Tendon.
5.
……………………. Protects the
brain and …………………….. protects heart and lungs.
6.
Heart is a ………………………. Pump.
7.
Muscles can ………………………. And
pull.
8.
………………………. Connect muscles
to bones.
9.
Dinosaurs became ……………………….
Even before the first human beings appeared on earth.
10.
Goose bumps are controlled
by the muscles present in the ………………………..
Write “T” for true and “F” for false
1.
Without a skeleton for
support, we would be as floppy as a jellyfish. [ ]
2.
A bird has wings but a bat
do not.
[ ]
3.
Thumb joint is a type of
pivot joint.
[
]
4.
Muscles of our face enable
us to make facial expressions. [
]
5.
All muscles are attached to
our bones. [ ]
6.
Triceps and biceps are the
muscles present in our upper arm. [
]
Chapter 3: Friction and how
objects move (Subjective)
Q1. Define friction
Q2. How friction helps you to ride a bicycle?
Q3. How can you reduce friction between moving parts?
Q4. Make a list where friction works?
Q5. What affects friction?
Q6. What is air and water resistance.
Q7. How does the surface area of a parachute effects its fall?
Q8. How does a competitive cyclist reduce air resistance?
Q9. Name the types of friction present between a marble spinning in a
bowl of water.
Diagrams: Identify
friction pg 62-67. Label pg 63
Objective Part
Choose the best answer
1.
………………… can move an object,
change its shape, direction and speed. [
force, weight ]
2.
…………………….. is the force
that oppose motion. [ heat, friction ]
3.
Air and water resistance
can be reduced by having a …………………………. Shape.
[ round, streamlined ]
4.
Opening the lid of a
container is difficult with ……………………….. hands.
[ dry, soapy ]
5.
Usually, there is greater
friction when an object moves on a ………………………. Surface.
[ rough, smooth ]
6.
The air resistance is
………………………… than the water resistance. [
smaller, larger ]
7.
The air resistance pushes
you …………………………….. and slows you down.
[ back, front ]
Subject :
Science First Term Class Four
Chapter 1 :
Habitats (Subjective & Objective)
Q1. What are organisms?
Q2. Define the following terms:
a.
Flora b.
Fauna c. Population d.
Community
Q3. Explain the term habitat. Give five examples of habitats.
Q4. How would you describe invertebrates? Give examples
Q5. Define the followings:
a.
Consumer. b.
producer. c. predator.
d. prey.
Q6. What are herbivores, carnivores and omnivores?
Q7. Define a food chain.
Q8. How do adaptations help an organism.
Q9. Compare the leaves of water lily with cactus.
Q10. What adaptations have camel to survive in the desert?
Q11. Define deforestation and pollutants?
Diagrams: 1. Identify habitats, deforestation and pollution (pg
4,5,6,7&24-27)
2. Draw
different food chains (pg 12,14,15) Label pg 17-20
Objective Part
Choose the best answer
1.
The harmful substances that
dirty our surroundings are…………………… (
ores, pollutants )
2.
In 2010 the …………………… in the
Gulf of Mexico killed many organisms. (
oil spill, uranium )
3.
A …………………….has wings and
six legs. ( ant, cricket )
4.
In …………………… stomata are
found on the upper side of leaf. (
water lily, cactus )
5.
…… ……………….can cause
landslides that kill people and destroy houses.
( worms, erosion )
6.
Camel stores fat in its
………………………. ( legs, humps )
7.
……………………….is an example of
an Arctic animal. ( harp seal, fennec
fox )
8.
Grasshopper, leech, ant,
butterfly are ………………………. ( vertebrates,
invertebrate )
9.
10.
……………………have bushy eye
brows, flat pads on feet and perspire little.
( horse, camel )
Fill in the blanks
1.
A living thing is also
called an ……………………….
2.
A food chain shows the
……………….. relationships among organism.
3.
The leaves of cacti are
reduced to ……………….. to cut water loss.
4.
A fish is the prey of an
eagle, and the eagle is the …………………….. of the fish.
5.
An ………………………….. is a
characteristic that enables an organism to survive in its habitat.
6.
Oil spill is a form of
water ………………………..
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