Practice Quiz 3 Date November 27, 2020 Science Skills – Grade 4 Practice Quiz 3 Enter email to receive quiz results: 1. The two outer layers of the skin are:A. Dermis and epidermisB. Dermis and poresC. Epidermis and fat cellsD. Dermis and glands 2. Complex machines are made up of:A. Two or more machinesB. Nuts and boltsC. Wheels, nuts and boltsD. At least one simple machine 3. All machines ____A. are hugeB. are made from metalsC. make noiseD. make work easier 4. Which set shows simple machines?A. Pulley, levers, inclined planesB. Airplanes, buses, carsC. Wheelbarrows, sewing machinesD. Boats, ships, submarines 5. The epidermis is the ______ layer of the skin.A. middleB. outerC. innerD. secondary 6. Which substance cannot be removed by filtering water?A. leavesB. rocksC. germsD. leaves 7. W e can care for our skin by _________A. sweating a lotB. eating a balance dietC. playing a lotD. working hard 8. Which organ do you use to identify odours?A. skinB. eyeC. noseD. tongue 9. Signals received from the environment is called:A. StimuliB. OrganC. PressureD. Nerve 10. A student rubbed his hands together, his hands will get wet because of :A. heatB. machinesC. gravityD. friction 11. Which of these machines has a sloping surface like a ramp?A. incline planeB. leverC. pulleyD. none 12. The tiny bud on our tongue is called?A. melaninB. papillaC. membraneD. septum 13. A _______ is a complex machine.A. shoeB. stoveC. leverD. ruler 14. A wheel is a type of ______A. filterB. rollerC. rubberD. glass 15. A push or a pull is called ____A. machineB. screwC. leverD. force 16. Which of these is a sense organ?A. lungsB. tongueC. heartD. intestines 17. The air which surrounds the earth is called _______A. windB. pollutantsC. oxygenD. atmosphere 18. _______ friction occurs when an object moves through water.A. rollingB. fluidC. slidingD. bouncing 19. How can water be conserved at home?A. Keep pipes runningB. Repair broken pipesC. Disconnect water supplyD. washing fruits under running water 20. Water with harmful waste in it is :A. contaminatedB. chlorinatedC. filtratedD. precipitated 21. The big muscle underneath our lungs is called the _________A. heartB. diaphragmC. brainD. diagram 22. The process by which plants make their food is ____A. transpirationB. photosynthesisC. pollutionD. malnutrition 23. ________ is transported throughout the body by the blood.A. Carbon dioxideB. HydrogenC. NitrogenD. Oxygen 24. We purify water by ___________A. chlorinatingB. boilingC. filteringD. all of the above 25. What is the chemical symbol for water?A. H 2OB. CHC. CO2D. NO 26. Air has __________A. space and tasteB. taste and takes up spaceC. shape and takes up spaceD. weight and takes up space 27. Contaminated water is responsible for the transmission of ________A. choleraB. thyroidC. poliomyelitisD. all of the above 28. Water freezes at ________A. 10 degreesB. 0 degreesC. 100 degreesD. 101 degrees 29. Lead in pencils is made from__________A. silica sandB. graphiteC. gypsumD. gneiss 30. A cone shaped mountain with an opening is called a ________A. rockB. mineralC. shapeD. volcano 31. Chalk is a mineral made from ________A. limestoneB. diamondC. graniteD. volcano 32. The counter top in the kitchen can be made from which rock? A. diamondB. silverC. quartzD. marble 33. All are minerals except ____________A. sandstoneB. diamondC. graphiteD. bauxite 34. Choose true or false for questions 34-38. The natural and frightening shaking or trembling of the earth is called hurricane.A. TrueB. False 35. Salt is a mineral that can be found in the sea and on land.A. TrueB. False 36. Soil conservation is using the soil wisely.A. TrueB. False 37. Fainting is as a result of too much oxygen in the lungs.A. TrueB. False 38. __________ is the most common mineral found in Jamaica.A. sandB. diamondC. gypsumD. limestone 39. Look at the map below and match the Mineral Baths to their parishes. Bath Mineral St. ThomasUnselectSt. ElizabethUnselectKingstonUnselectBlack River Spa St. ThomasUnselectSt. ElizabethUnselectKingstonUnselectRockfort Mineral Bath St. ThomasUnselectSt. ElizabethUnselectKingstonUnselect Loading... Previous Lesson Back to Course Next Lesson