Neeti Rathore

CLASS 7 Chapter 11 Transportation in Animals and Plants

Exercise Questions Question 1. Match structures given in Column I with functions given in Column II. Column- I Column-II (i) Stomata (a) Absorption of water (ii) Xylem (b) Transpiration (iii) Root hairs (c) Transport of food (iv) Phloem (d) Transport of water (e) Synthesis of carbohydrates Solution 1. Column- I Column-II (i) Stomata (b) Transpiration …

CLASS 7 Chapter 11 Transportation in Animals and Plants Read More »

CLASS 7 Chapter 8 Wind, Storms and Cyclones

Question 1. Fill in the missing word in the blank spaces in the following statements: (a) Wind is——————air. (b) Winds are generated due to——————heating on the earth. (c) Near the earth’s surface __________air rises up whereas ___________ air comes down. (d) Air moves from a region of ——— pressure to a region of——— pressure. Solution …

CLASS 7 Chapter 8 Wind, Storms and Cyclones Read More »

CLASS 7 Chapter 7 Weather, Climate and Adaptations of Animals to Climate

Question 1. Name the elements that determine the weather of a place. Solution 1. The elements that determine the weather of a place are temperature, humidity, rainfall, wind speed, etc. Question 2. When are the maximum and minimum temperatures likely to occur during the day? Solution 2. The maximum temperature is likely to happen during …

CLASS 7 Chapter 7 Weather, Climate and Adaptations of Animals to Climate Read More »

CLASS 7 Chapter 6 Physical and Chemical Changes

  Question 1. Classify the changes involved in the following processes as physical or chemical changes: (a) Photosynthesis (b) Dissolving sugar in water (c) Burning of coal (d) Melting of wax (e) Beating aluminium to make aluminium foil (f) Digestion of food Solution 1. chemical change Physical change Photosynthesis   Dissolving sugar in water Burning …

CLASS 7 Chapter 6 Physical and Chemical Changes Read More »

CLASS 7 Chapter 5 Acids, Bases and Salts

Question1 State the difference between acids and bases Solution1 Acids Bases ·       Acidic in nature ·       Basic in nature ·       Sour to taste ·       Bitter to taste ·       Acids turns blue litmus paper into red. ·       Base turns red litmus paper into blue. ·       Acid contains hydrogen ion ·       Base contains hydroxyl ion.   Question …

CLASS 7 Chapter 5 Acids, Bases and Salts Read More »

CLASS 7 Chapter 4 Heat

Question 1: List out the similarities and dissimilarities between the laboratory thermometer and the clinical thermometer. Answer: Similarities between the laboratory thermometer and the clinical thermometer are as follows:- Both Thermometers are made of narrow uniform glass tubes. Both Thermometers have a bulb at one end. Both Thermometers contain mercury in the bulb. Both Thermometers …

CLASS 7 Chapter 4 Heat Read More »