Thursday, 30 December 2021

Super senses chapter class 5th ncert , cbse board

             Super Senses

1.All living beings on this earth have five sense with them


2. These senses are :

  • Sight from eyes

  • Smell from nose

  • Taste from mouth

  • Touch from skin

  • Hearing from ears

3. Lets learn about these:

4.    Have you ever noticed if you threw a piece of sugar or any sweet edible things on the floor how fast an ant comes to notice that, and why?

5. Answer is due to Smell. Ants have a very strong sense of SMELL.

 Ant also recognises it's fellow being from only smell. 

Ants leaves their smell on ground so that there fellow ants follow them, 

6. If you make a barrier between the line of going ants, they will make another line to walk as they work on smell.

7. Similarly, mosquitoes find human body by their smell and heat,

8. While male silkworm also finds female silkworm through its smell only.


9. Dogs mark their area by urine so that no other dog stays in the area, plus dogs employed by our forces to detect bomb implants due to their high sense of smell.

10.We human also sensitive to smell, some human being find some smells bad and good, it also depends on person to person, example may be a variant of deodorant is like by a group of people while same variant doesn’t like by other group of people

11. But certain smells are always considered bad like garbage smell, toilet smell. 

12. Just imagine how some children who spend the whole day picking garbage

13. We have seen birds have their eyes on either side of their heads. You know why 

14. So that, their eyes can focus on two different things at a time. When they look straight ahead, both their eyes focus on the same object. Plus they can save themselves from predators. It also increases their visionary area. 

15. An owl has eyes in front of its head,like human beings to increase focus. Now  try to see one thing by closing one eye and opening another eye and find the differences.

 16. If humans have eyes on both sides,it will increase the area of seeing things i.e increased vision area.

17. 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 metres what we can see from a distance of two metres.

18.   Animals can’t  see all colors like human beings, those animals who are awake in morning can see some colors but those who are nocternal can’t see colors in the night.

Sharp ear

19. Ears give living beings a sense of hearing. Some animals like

  1. Fennec Fox   

  1. African Elephant

  1.  Mule Deer  

  1. Long eared jerboa

20. Have very big ears which not only help them to listen from a long distance, very clear and focused plus protect them from predators. Unlike human beings if we need to listen very carefully we need the speaker or sound producing thing. Example if a person is talking softly we need to go near that person to listen and understand it.

21. Sound systems of living being

22. Every living being on this earth uses its sound to communicate with each other.

Like we human shout whenever we feel scared or something wrong happens, 

Similarly, many animals and birds have different languages to inform each other


इस पृथ्वी पर रहने वाला प्रत्येक प्राणी एक दूसरे से संवाद करने के लिए अपनी ध्वनि का उपयोग करता है।

जैसे हम इंसान चिल्लाते हैं जब भी हमें डर लगता है या कुछ गलत होता है, इसी तरह, कई जानवरों और पक्षियों की एक-दूसरे को सूचित करने के लिए अलग-अलग भाषाएं होती हैं

24. Langur and many birds make special warning calls whenever they see leopards or eagles. There are different-different warning signs for different different warnings for ground and sky.

25. Under the water, Dolphins also make different sounds to give messages to each other. Scientists believe that many animals have a special language of their own.

26. Sleep-waking

27. We living beings sleep to take rest and to improve oursense, Human beings should sleep for 7-8 hours in 24 hours to be healthy.

28. While some animals go for a long time to sleep for months i.e called hibernation. 

Like lizards and bears go to long sleep in winters.

29. These are some sleeping patterns of various animals

Summary ends

सारांश समाप्त

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