Class 4 Science Chapter 3 Test 3 Updated: 11 Jun 2022 841 Welcome to your Class 4 Science Chapter 3 Test 3 1. _______ percent of human body consists of water. 60 70 80 50 None 2. It is necessary for the prevention from contagious disease: wearing mask, washing hand, vaccination. Wearing mask, washing hand, sitting in the sun Washing hands, sitting in the sun, sleeping more Vaccination, washing hand, not sitting in the sun None 3. ________ is the easiest way to clean water. Filtration Distillation Boiling None of these None 4. Drinking polluted water may cause diseases like: Cholera Typhoid Hepatitis All of these None 5. The process by which the particles present in water are separated by a filter is called ______. Filtration Distillation Boiling None of these None 6. Calcium, iron, sodium, chlorine, fluorine and iodine etc. are called. Vitamins Carbohydrates Minerals None of these None 7. Different dust particles in air mix with rain water and make them _________ Clean Filter Distilled Polluted None 8. None 9. Every year global water day is celebrated on______. 21st March 22nd March 23rd March 24th March None 10. If you have flu then what will do to save yourself and other? Will exercise Will sleep for more time Will sit in the sun Will wear mask None Time's up
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