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EAR TO EAR ENVIRONMENTAL STUDIES CLASS-IV
The document explains the significance of animal ears and their variations in appearance, noting that all animals have ears, though some are not visible. It discusses how ears allow animals to hear and emphasizes the distinct patterns of hair on animals' skin. The text also differentiates between viviparous animals that give birth to live young and oviparous animals that lay eggs.
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EAR TO EAR ENVIRONMENTAL STUDIES CLASS-IV
- 1. EAR TO EAR ENVIRONMENTALSTUDIES CLASS-IV
- 2. Who has gotmy ears? Are these animals looking funny? The artist has drawn wrong ears on the heads of the animals. Give correct ears to the animals in the space given below.
- 3. Different animals havedifferent kinds of ears.
- 4. We can seethe some of the animals ears.
- 5. We cannot seesome of the animals ears All the animals have ears even though we cannot see the ears.
- 6. Observe the animalsears carefully. An animal with ears like fans
- 7. An animal withears like leaves An animal with ears on the top of its head An animal with ears on both sides of its head
- 8. You know verywell that ears help us to hear. In some animals you can see the ears, in some you can not.
- 9. We can notsee a bird’s ears. A bird has tiny holes on both sides of its head. Generally, the holes are covered with feathers. If you look carefully, A bird have tiny hole on each side of its head. The hole are generally covered with feathers. They help the bird to hear.
- 10. Animals like lizardcrocodile etc also have tiny holes as ears but we cannot see them.
- 11. Whose Skin Now youknow how to recognize animals by their ears. Let us see if we can recognize animals by their skin. The different patterns on the animals are due to the hair on their skin.
- 12. Have you everseen an animal without hair or whose hair have been removed? Imagine how the animal would look if it did not have any hair on its skin. The different patterns on animals skin are due the hair on their skin.
- 13. So, what didyou note? Those animals whose ears you can see have hair on their body. Then how these animals increase number.
- 14. Those animals thatwhose ears we can see, have hair on their body. These animals directly give birth to young ones we called them as viviparous. Ex: cow, dog cat….
- 15. These animals givebirth to the young ones. Those animals that do not have ears on the outside, do not have hair on their body. These animals lay eggs. We called as oviparous. Ex: birds, hen, lizard.