Environmental Science (EVS): Insects (Class III)

Our Creepy Crawly Friends
EVS: Class III

Creepy Crawly Creatures
Insects, Worms, Reptiles & Spiders
Features
Where they live?
Useful creatures
Harmful creatures
Control the harmful creatures from spreading
What we will learn?

Insects
Cockroach
Butterfly
Housefly
Mosquito
Honeybee
Dragonfly
Insects are very small creatures that are commonly found around us.
Some creatures can fly with their wings.

Insects
Grasshopper
Cricket
Locust
Stick Insects
Leaf Insect
Stick Insect
But some insects don’t have wings so they hop or jump on ground.

Features of Insects
An insect has six legs.
Its body is divided into three parts – Head, Thorax and Abdomen.
It has a pair of Antennae to sense and feel the things around.
It doesn’t have a bone but has a hard covering.

Body parts of a Cockroach
Antennae
Head
``
Thorax
Abdomen

Butterfly and Moth
Butterfly has colorful wings.
Butterfly fly during day.
Butterflies open and close their wings vertically.
Moth has grey or brown color wings.
Moth flies during evening or night.
Moths keep their wings open.
Butterfly and Moth look similar but they are different.

Worms
Earthworm
Caterpillar
Silkworms
Slug
Caterpillar
Snail
Worms are also very small creatures that do not have any bones.

Body parts of a Worm
Segments
Legs
Eyes

Features of Worms
Worm’s body is like a long tube.
It is divided into many parts called Segments.
Each segment has a pair of legs.
They crawl or walk or swim with their legs or body.
They have a pair of simple eyes.

Reptiles
Garden Lizard
Chameleon
Lizard
Iguana
Yellow headed Gecko
Lizard
Reptiles are the creatures with four legs or limbs and have back bones.

Body parts of a Reptiles
Tail
Leg or Limb
Eyes

Features of a Reptile
Reptiles have four legs or limbs.
It has got very sticky and long tongue.
It helps them to catch their food without moving from their place.
Chameleon can change its color to match the surrounding.
It helps it to hide from its enemies. It is called as Camouflage.

Spiders
Spiders are neither insects, worms nor reptiles.
They creep with their legs.

Features of Spiders
Spiders have eight leg.
Its body is divided into two parts.
There are tiny holes on the back of a spider’s body.
It gives out a liquid that forms a sticky thread to make web.
It makes a web to catch any other insects. Insects get stuck into web when it comes near and spider swallows.

Where these creatures live?
Insects, Worms, Reptiles are found everywhere.
They are mostly found in House, Gardens, On plants, In soil, and In water bodies.
They hide themselves in cracks, nooks and corner of the houses as they are scared of lizards and humans.
Cockroaches mostly come out at nights and called nocturnal insects.

Worms, Insects, Reptiles are Useful
Honeybee gives us honey
We get silk from silkworms to make clothes
Earthworms dig the soil and make it more fertile
Lizards eat insects and flies.

Harmful Worms, Insects and Reptiles
Bite of a Wasp and Bee is called a sting. The parts where they sting gets swollen a lot.
When they sting us it is very painful.

Germs get stuck to their legs when they sit on the garbage.
When these flies sit on our food the germs settle down on our food. And we get sick when we eat this food.
Flies spread diseases like Diarrhea, Cholera and food poising.

Mosquitoes spread due to standing water like rain water in any container, puddles, swamps, lakes and drainages.
They cause diseases by biting people.
Malaria, Dengue and Chikunguniya are the diseases caused by mosquito bites.

Controlling Flies and Mosquitoes
By keeping our homes and surroundings clean.
By throwing garbage in covered bins.
By cleaning the standing water collected near homes, in containers and covering the drainage lines.
By spraying anti-mosquito fogs.

Thank You!!!
-theeducationdesk.com

Environmental Science (EVS): Insects (Class III)

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Environmental Science (EVS): Insects (Class III)