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CBSE worksheets for Respiration in Organisms worksheet for class 7 in PDF for free download. Science worksheets for class 7 CBSE includes worksheets on Respiration in Organisms as per NCERT syllabus. CBSE class 7 worksheets as PDF for free download Respiration in Organisms worksheets. Users can download and print the worksheets on class 7 Science Respiration in Organisms for free.

Download Respiration in Organisms worksheet for class 7

Symmetry worksheet for class 7 Important Topics

WHY DO WE RESPIRE?
BREATHING
HOW DO WE BREATHE?
WHAT DO WE BREATHE OUT ?
BREATHING IN OTHER ANIMALS
BREATHING UNDER WATER
DO PLANTS ALSO RESPIRE?

Some important Facts about Respiration in Organisms worksheet for class 7

Observe fish in an aquarium. You will find flap like structures on both sides of their heads. These are flaps which cover the gills. These flaps open and close alternately. On the basis of these observations, explain the process of respiration in the fish.
Visit a local doctor. Learn about the harmful effects of smoking. You can also collect material on this topic from other sources. You can seek help of your teacher or parents. Find out the percentage of people of your area who smoke. If you have a smoker in your family, confront him with the material that you have collected.
Visit a doctor. Find out about artificial respiration. Ask the doctor:
1. When does a person need artificial respiration?
2. Does the person need to be kept on artificial respiration temporarily or permanently?
3. From where can the person get supply of oxygen for artificial respiration?

NCERT class 7 Science Solved Worksheets

Chapter-1 Nutrition in Plants
Chapter-2 Nutrition in Animals
Chapter-3 Fiber to Fabric
Chapter-4 Heat
Chapter-5 Acids, Bases and Salts
Chapter-6 Physical and Chemical Changes
Chapter-7 Weather, Climate And Adaptation
Chapter-8 Wind Storms and Cyclones
Chapter-9 Soil
Chapter-10 Respiration in Organisms
Chapter-11 Transportation in Animals and Plants
Chapter-12 Reproduction in Plants
Chapter-13 Motion and Time
Chapter-14 Electric Current and its Effect
Chapter-15 Light
Chapter-16 Water A Precious Resource
Chapter-17 Forests: Our Lifeline
Chapter-18 Waste Water Story

CBSE Worksheets for class 7 Science in PDF

BREATHING UNDER WATER

Can we breathe and survive in water? There are many organisms which live in water. How do they breathe under water?

You have studied in Class VI that gills in fish help them to use oxygen dissolved in water. Gills are projections of the skin. You may wonder how gills help in breathing. Gills are well supplied with blood vessels (Fig. 10.10) for exchange of gases.

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