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Showing posts from September 11, 2020

Our nervous system and sense organs

 Important question answer from the topic Nervous system  A. Which one is correct ? 1. Our nervous system consists of the brain, the spinal cord and the a. blood vessels b. nerves c. lungs  Ans: c) lungs 2. Our brain needs a constant supply of a. oxygen b. nitrogen c. lungs Ans: a) oxygen 3. When we happen to touch a hot object, the sensory nerve immediately passes a message to the a. brain b. spinal cord c. hands Ans: a) brain 4. ______is the largest organ in our body. a. skin b. nose C. ears Ans: a) skin B. Fill in the blanks : 1. The brain is control centre of the body . 2. The brain has three parts . 3. There are nerve endings on the upper part of the nose . 4. The coloured circle in the eye is the iris . C. Write 'T' for true or 'F' for false : 1. The cerebellum coordinates the actions of the muscles. Ans: True  2. The actions controlled by the spinal cord are called reflex actions.  Ans: True 3. The ears enable us to keep our balance. Ans: True 4. The pupil i

Food and digestion

 Important question answer from the topic food and digestion . A. Which one is correct ? 1. Sugar and starch are carbohydrates . a) protein b) carbohydrates c) fat 2 Vitamin A keeps the eyes and skin healthy . a) Vitamin A b) Vitamin B c) Vitamin C 3. Proper food habits keep healthy and fit both . a) healthy b) fit  c) both B. Fill in the blanks : 1 . Oesophagus   in the digestive system connects the mouth to the stomach. 2. Saliva softness food in our mouth. 3. Digestion is completed in the small intestine. 4. The three glands that help to complete the digestion are  liver, gall bladder    an d  pancreatic gland . 5. Solids move from the large intestine into the rectum .  6. The liver secretes bile juice which digest fat . 7. Digestion begins in the mouth . 8 . Undigested solid waste is thrown out from the body through the anus . C. Write T' for true or 'F' for false statements : 1. Digestion begins in the stomach.  False 2. Food moves down the oesophagus into the