Practice Quiz 4 Date November 27, 2020 Science Skills – Grade 4 Practice Quiz 4 Enter email to receive quiz results: 1. Pure water boils at __________ degrees Celsius.A. 200B. 10C. 100D. 0 2. Astronauts take their own supply of ____________ when going into outer space.A. carbon dioxideB. oxygenC. nitrogenD. water vapour 3. At the side of our tongue, we taste mainly:A. bitterB. sweetC. sourD. salt 4. Which substance cannot be removed by filtering water?A. leavesB. germsC. rocksD. broken sticks 5. Which organ do you use to identify chemicals?A. skinB. noseC. tongueD. eye 6. A bird flying is an example of _________ friction.A. slidingB. rollingC. fluidD. motion 7. Work is being done when;A. no movement takes placeB. a force is applied to an objectC. when something moves from on e place to anotherD. a lot of effort is used 8. If you live without water for six days your body will become___________A. contaminatedB. sedimentC. dehydratedD. frenulum 9. The tiny taste bud on our tongue is called?A. melaninB. membraneC. papillaD. septum 10. Water vapour is a _________A. solidB. liquidC. gasD. virus 11. How many tastes can be detected on the tongue?A. 5B. 3C. 4D. 6 12. The outer layer of the skin is called the ___________A. surfaceB. fossilC. dermisD. epidermis 13. Which of these is not a sense organ?A. skinB. heartC. tongueD. ear 14. The ________ is the air around us which is filled with gases.A. windB. oxygenC. pollutantsD. atmosphere 15. When water becomes dirty we say it is polluted or _________.A. contaminatedB. filtratedC. chlorinateD. precipitated 16. The big muscle underneath our lungs is called the ___________.A. heartB. brainC. diaphragmD. diagram 17. Water freezes at __________ degrees Celsius.A. 0B. 100C. 20D. -5 18. The process by which plants loses water is called__________A. transpirationB. investigationC. malnutritionD. filtration 19. Oxygen is transported throughout the body by the ___________.A. lungsB. ribsC. vainD. tear duct 20. When we apply force directly to something this is called ___________.A. pressureB. inhalationC. movementD. plunger 21. When sun starts to shine after rain, what happens to the water puddles? It _______A. precipitatesB. condensesC. evaporatesD. transpires 22. ________ is a substance that reduce friction.A. AirB. LubricantC. LavaD. Melanin 23. ____________ are toothed wheels found in complex machine.A. pushB. wedgesC. gearD. pulley 24. We can make water safe for drinking by __________A. filtrationB. examining it C. boilingD. none of the above 25. A sloping surface that raises heavy loads to higher level using less effort is a/an ______.A. screwB. leverC. chockD. inclined plane 26. Choose True or False for questions 26-35. A broom is a machine .A. TrueB. False 27. The nostrils are separated by the septum.A. TrueB. False 28. Solar energy is from the wind.A. TrueB. False 29. A flagpole is an example of a moveable pulley.A. TrueB. False 30. One third of the human body is made up of water.A. TrueB. False 31. We can make water safe for drinking by chlorination.A. TrueB. False 32. The body moves like a self- repairing machine.A. TrueB. False 33. A doctor who specializes in skin care is called a psychiatrist.A. TrueB. False 34. Water lily is a flower that grows in pods and lake.A. TrueB. False 35. Oil leaks from ships and boats cause water pollutionA. TrueB. False 36. Match the statements with the correct responsesThe three states of matter are... Improper disposal of wasteUnselectUse it wiselyUnselectCarbon DioxideUnselectSolid, liquid and gasUnselectrivers, lakes, streams, oceansUnselectThe presence of air.UnselectTo conserve water we should... Improper disposal of wasteUnselectUse it wiselyUnselectCarbon DioxideUnselectSolid, liquid and gasUnselectrivers, lakes, streams, oceansUnselectThe presence of air.UnselectA gas that plants use to manufacture their food... Improper disposal of wasteUnselectUse it wiselyUnselectCarbon DioxideUnselectSolid, liquid and gasUnselectrivers, lakes, streams, oceansUnselectThe presence of air.UnselectOne cause of water pollution.. Improper disposal of wasteUnselectUse it wiselyUnselectCarbon DioxideUnselectSolid, liquid and gasUnselectrivers, lakes, streams, oceansUnselectThe presence of air.UnselectWater for domestic uses comes from sources such as... Improper disposal of wasteUnselectUse it wiselyUnselectCarbon DioxideUnselectSolid, liquid and gasUnselectrivers, lakes, streams, oceansUnselectThe presence of air.UnselectI placed some dry soil in a transparent jar and poured enough water to cover it. I noticed bubbles coming from the soil. Why was this so? Improper disposal of wasteUnselectUse it wiselyUnselectCarbon DioxideUnselectSolid, liquid and gasUnselectrivers, lakes, streams, oceansUnselectThe presence of air.Unselect Loading... Previous Lesson Back to Course Next Lesson