Class 3 Evs - ICSE-SCIENCE
Animals: Common Insects
In this chapter, Class 3 students explore the fascinating world of tiny animals called insects. Young learners will discover the common features of insects, such as having six legs, three body parts (head, thorax, and abdomen), and often a pair of antennae. The chapter covers useful insects like honeybees and silkworms that help us, as well as harmful ones like mosquitoes and houseflies that spread diseases. Understanding these tiny creatures is important for ICSE Science board exams as questions frequently test the identification of insect body parts, their uses, and how to stay safe from insect bites.
Start Learning FreeKey Concepts
What is an Insect?
Insects are very small animals that do not have bones inside their bodies. They have a hard outer covering that protects them.
Body Parts of an Insect
Every adult insect's body is divided into three main parts: the head, the middle part called the thorax, and the lower part called the abdomen.
Legs and Wings
All insects have six legs attached to their thorax. Many insects also have one or two pairs of wings that help them fly.
Antennae
Insects have two feelers on their head called antennae, which they use to smell, taste, and feel things around them.
Useful and Harmful Insects
Some insects like bees give us honey and are helpful, while others like mosquitoes bite us and can make us sick.
Important Formulas
Board Exam Info
In ICSE Science exams, this chapter typically carries about 5 to 8 marks. Common question types include fill in the blanks about insect body parts, matching insects to what they give us (like silkworm to silk), and short answer questions about helpful and harmful insects.
Frequently Asked Questions
Are spiders considered insects?
No, spiders are not insects because they have eight legs and two body parts, whereas insects always have six legs and three body parts.
Why do insects have antennae?
Insects use their antennae to smell, taste, and feel their way around the environment and find food.
How do mosquitoes harm us?
Mosquitoes bite us to drink our blood and can spread dangerous diseases like malaria and dengue.
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