Class 4 Science Chapter 3 Test 3 Welcome to your Class 4 Science Chapter 3 Test 3 1. What is cause of polio? Bacteria Virus House fly Mosquito 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 3. ________ is the easiest way to clean water. Filtration Distillation Boiling None of these 4. Blood circulates in the body and provides oxygen and food to every part of the body due to ________ Vitamins Minerals Water None of these 5. Different dust particles in air mix with rain water and make them _________ Clean Filter Distilled Polluted 6. Calcium, iron, sodium, chlorine, fluorine and iodine etc. are called. Vitamins Carbohydrates Minerals None of these 7. 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 8. If our body temperature increases from 98.6F to 101F then its cause is: Hot weather Fever Sitting in the sun Sitting near fire 9. The process by which the particles present in water are separated by a filter is called ______. Filtration Distillation Boiling None of these 10. Every year global water day is celebrated on______. 21st March 22nd March 23rd March 24th March Time is Up! Time's up
