5th Class Science Animals Animals

LEARNING OBJECTIVES

This lesson -will help you to:

• Study how animals find their food.
• Learn about different senses of animals.
• Know about the various things we get from animals.
• Understand how people depend on animals.
• Understand the ways through which we can save the animals.

QUICK CONCEPT REVIEW                                                                                           

DO YOU KNOW

Animals also have sense organs, which are very active. They can see, hear, taste, smell and feel. There are many examples of amazing animal senses. Some animals can smell other animals from long distances. Some can hear the slightest sounds. Some can see their prey from far away.

Misconcept / Concept

Misconcept: Snakes dance to the snake charmers flute tunes when they hear its music.

Concept: Snakes are born deaf. They can only feel vibrations of the flute and they move according to that.

Misconcept: Birds’ eyes are located in the front of their heads.

Concept:  Most birds have eyes on the sides of their heads.

A FEW FACTS ABOUT ‘’HOW ANIMALS SMELL’’

• Why ants move in a line?

As the ant move, they leave a smell on the ground.

The other ants follow the smell to find the way.

• Have you ever been disturbed by a mosquito?

   Mosquitoes can find you by the smell of your body.

   They can also feel the heat of your body.

• Have you ever seen a dog sniffing here and there? Dogs mark out their own area on the road. They can make out if another dog has come into their area by the smell of its urine or potty (latrine).

A FEW FACTS ABOUT “HOW ANIMALS SEE”

• Have you ever noticed birds moving there neck very often?

Most of the birds have their eyes on either side of the head. Their eyes can focus on two different things at a time. In most of the birds, eyes are fixed and cannot move. So birds have to turn their heads to see around.

• How far can birds see?

                Some birds like kites, eagles, vultures can see four times as far as we can. These birds can see things from a distance of eight meters what we can see from a distance of two meters.

• Do animals see colours?

                Animals cannot see as many colours as we can. It is believed that animals that are awake in the daytime can see some colours. Those animals that are awake at night can see things only in black and white colours.

A FEW FACTS ABOUT ‘’HOW ANIMALS HEAR’’

• How do snakes hear?

                They do not have external ears (which you can see).

                They only feel the vibrations on the ground.

• How langurs save other animals in the jungle?

                A langur warns other animals of dangers like a tiger or leopard. The langur does this by making a special warning call.                                     

• Why do dolphins make different sounds?

Dolphins make different sounds to give messages to each other.

WHY IS TIGER DANGER?

You must have heard of poaching. People go to forests for fun and kill animals like tiger or deer. Some people kill animals for their skin, horns, tusks or other useful parts which they sell to earn money. To protect these animals, our government has declared some forests as protected areas. Some of them are the Jim Corbett National Park in Uttarakhand and 'Ghana in Bhagalpur district of Rajasthan. In these areas nobody can hunt animals or destroy the jungle.

HARMFUL ANIMALS

There are many kinds of snakes in our country but only four types are poisonous. They are - Cobra, Common Krait, Russel's Viper (Duboiya), Saw-scaled Viper (Afai). A snake has two hollow teeth (fangs). When it bites, the poison enters the person's body through the fangs. There is a medicine for snake bites. Rats are called as enemies of farmers because they destroy the crops.

USEFUL ANIMALS

People use animals for various purposes like a dog or cat as pets, a horse, camel or bullock for transportation, hens for eggs, cows and goats for milk, sheep for wool and also some animals for entertainment. Such as monkeys and lion are used to entertain people in circus. Honey is obtained from honeybee. Silkworms produce silk which is used to prepare different types of fabrics. Snakes are called friends of farmers because they eat rats.