Insects are small creatures that do not have bones but instead have an exoskeleton. They have three main body parts - a head, thorax, and abdomen. Insects can move in different ways like flying, walking, jumping, crawling, or swimming depending on their body structure. They eat a variety of foods like plants, nectar, other insects, and sometimes blood. Insects have different mouth structures adapted to their food source like piercing/sucking, chewing, or sponging. Earthworms live underground in soil and come to the surface when it rains, eating dead and decaying materials. They are beneficial to farmers by aerating and fertilizing the soil.

2. What are Insects?
Insects are small creatures that are commonly seen around us . They do not have
bones. They have a hard outer skeleton called Exoskeleton. ‘Exo’ means Outer. Some
Insects have WINGS which helps them to fly.

3. Some insects that do not have wings, jump and hop around to move to places.

4. What is Same and Different in these Insects?
Same Different
Pair of eyes Shape and size of their body
6 legs (some have more) Some have wings, Size or the wings
Antenna Colour

5. Imagine Caterpillar, Ant and
Grasshoppers are your friends.
Caterpillar
Grasshopper
Ant
How will you stitch clothes for them?
Can the clothes of a Caterpillar be
used by Grasshopper?
The clothes stitched for each insect
will be different.
The Pants of Insects will have more
legs, their shirt will be different
because they have wings
Today we will Learn Body parts of
Insects

6. Head Thorax Abdomen

7. What is common in Our Body Part and Insect Body Part?
Insects have some parts of the body similar to humans. The HEAD,
THORAX(Chest of human) and ABDOMEN(Below the chest) are common
between human and insects.

8. Head of an Insect
Compound
Eyes
Antennae
Head of insects is like human head. It contains the Brain,
eyes and Mouth.
Insects have a pair of Compound Eyes and a pair of
Antennae
Antennae's are also called as Feelers.
Feelers help the insect to feel or touch and to smell and
taste since they don’t have a nose.

9. Thorax of Insect
Middle Part of the body is called the Thorax
The legs and wings are attached to the thorax.
Most insects have six legs and a pair of wings.
Thorax

10. Abdomen of Insects
Abdomen
The lower part of the Insect body is the
Abdomen.
It is the largest part of the Insect body.
It Contains the heart, the stomach and
reproductive system.
Some insects also have stingers. It is
very painful when they sting is and that
part of our body gets swollen

11. Where are the skeleton of insects found?
Insects have Skeletons on the outer side of their body. It is called Exoskeleton.
What are the three main body parts of Insect?
Head, Thorax and Abdomen
What kind of eyes do insects have?
Insects have Compound Eyes.
What are antennae otherwise called as and why?
Antennae are called as Feelers. They help the insect to smell, taste and feel.
Which part of the body are the legs and wings attached in an insect?
Thorax
Which is the largest part of the Insect Body?
Abdomen.
How are insects body parts same as Human?
Insects have head, thorax and abdomen like humans.

12. Food Insects Eat
What kind of food will you serve if you have your insect friends for your birthday party?
- Insects eat different kinds of food. Some eat sweet food, some like leaves and
plants, nectar from plants, Food spilt on the floor and also other insects.
What are these insects eating?
ANTS eat any food particles left on the
floor.
They like sweets especially. It gives
them energy.
MOSQUITOES suck nectar from
flowers to get energy.
Female mosquitoes also suck blood
from animals and humans.

13. NECTAR BUTTERFLIES : We see many butterflies in the garden
around us especially when there are many flowers.
They come to suck nectar from flowers.
GRASSHOPPERS : Are also found in the garden because they
eat leaves and stems of plant
COCKROACH : are feed on any food particles that is thrown
or spilt. They prefer sweets, meat and starchy food item.

14. STEM
ROOTS
WOOD
OTHER INSECTS
PAPER
Water
Some other food that insects eat.

15. Are the Mouth of all the Insects the same?
-No , Different Insects eat different kinds of food. So they have different kind of
mouth.
Piercing – Sucking : Mosquito have needle mouth that help
Them to pierce thru the body.
Siphoning – Butterfly and moth that suck nectar have straw like mouth.
Needle mouth part for
piercing and sucking
They can Roll them
when
they are not eating
MOUTH OF INSECTS:

16. Chewing –insects that have claws have chewing mouthpart eg ant, grasshopper.
Claws help them to cut food like grass, leaves etc.
Sponging – Housefly, fruit flies and other non biting insects have sponging mouth
Claws

17. How do butterflies suck nectar from plants?
- Butterflies have straw like mouth that help them to
suck Nectar from plants.
What kind of mouth do bees have?
Bees have BOTH SUCKING and CHEWING mouth parts
Why do ants like sweets?
- Ants like sweets because it gives them lots of energy.
Name some food eaten by insects?
- Grass, leaves, root, food particles, blood , other insects, etc
What does house flies mouth part look like?
- Houseflies have sponging mouth that help them to absorb food particles.
Do insects need water to live?
- Yes like humans insects too need water . Some insects get water from the food
they eat, while others need water to live.
Chewing
Sucking

18. How Insects MOVE?
All Insects use their Legs or wings to move, but each has the own style of moving.
Different ways Insect Move are :
Insects
Fly
Walk
JumpSwim
Crawl

19. Insects that have light
body can Fly.
Insects with two front
legs longer than other
legs. They have strong
back leg that help them
to Jump
Caterpillars have very
short legs that helps
them to crawl.

20. Cockroaches have long legs
that help them to run fast
Some Insects that live in water
can swim
They have skinny body and legs
that helps them stay on top of
water
Others have short fat legs that
help them move quickly in water

21. I am thin and Long. I live in the dirt , I wiggle
thru tunnel underground.

22. Features of Earthworm, Food and Shelter.
This is an Earthworm. What are their
body parts?
Earthworms look like thin tube.
They have little rings in their body.
Their body is made up of muscles which
helps them to move around.
Rings
Where do earthworms live?
Earthworms live in the soil and come out
when it rains.
Why do they come out when it rains?
They come out because it becomes
difficult for them to breathe.

23. Earth worms eat dead and decayed materials , insects, plants and leaves.
What do earthworms eat?

24. Can you call earthworms as Insects?
No. Why?
-Because earthworms do not have three body parts like Insects(what are
the 3 body part?), and also they do not have wings and legs
-Do you know Earthworms are Farmers best Friend? Why do you think
they are ?
- Earthworms are famers best friend because when they come out of the
soil, the dig holes which helps air and water to the roots.
-They mix up the soil upside down and help the soil to stay fertile.

26. I work very hard all summer and enjoy my winter. I live in a colony, I make tunnels in the
soil and move seeds from one place to another who am I?
- ANT.
I am red with black spots on me. I have a head, thorax and abdomen. I eat leaves. Who am
I?
Ladybird.
I can jump 20 times the length of my body. I make music when I rub my wings and legs. I
get naughty and destroy crops sometimes .Who am I.?
Grasshopper.
When I am born I crawl. Then I sleep and wake up and begin to fly. I am very beautiful to
watch. I help to pollinate flowers. Who am I?
Butterfly