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Abhishek blew hard on a mirror surface. He observed that the mirror became misty because of tiny water droplets that formed on the mirror. What can he conclude from this activity?
Substances abundant in the dull, purplish-red blood in the veins are _____.
(c) Carbon dioxide
(d) Waste materials
The given figure shows the human digestive system. In which labelled part food is both masticated and partially digested?
Food is masticated with teeth and partially digested by the action of salivary juices in the mouth (P).
Sameer uses dumbbell to exercise. Which body systems are involved in bending and straightening of the arm?
What happens when we touch a hot kettle?
When we touch a hot kettle with our hand, our skin sends message to the spinal cord through nerves, and here the message is processed is sent again to the hand (skin) through nerves to pull back.
Study the given diagram,
Q. Which of the following represents the small intestine?
Small intestine is an organ of digestive system where complete digestion of food occurs and the digested food nutrients are absorbed into blood and sent to all body parts.
Beena, Shalu and Navpreet wanted to find out who among them had the biggest lung capacity. They decided to blow into a balloon with one breath and see how big it will become. Which of the following factors they must keep the same to make the test a fair one?
1. Colour and design pattern of the balloon
2. Size and shape of the balloon
3. When to breathe in forcibly before blowing
4. Material, balloon is made of
Read the given statements made by four students.
Priya: I love the smell of wet soil after rains.
Shruti: My hair feel so rough after using this new shampoo.
Om: Watch out! You can slip on this banana peel.
Sam: I just love the musical sound made by wind chymes hanging at the door of my living room.
Now, select the correct option regarding this.
The given picture shows two organ systems of our body, X and Y. Select the correct statement about these systems.
Select the correct option regarding the organ system shown here.