Grade 7 Integrated Science – Laboratory Apparatus and Instruments Quiz

1. Which instrument is not used to measure length?

tape measure
rulers
Calibrator
rules
Explanation:

2. ---- is used to measure long lengths.

rule
ruler
calibrator
tape measure
Explanation:

3. Differentiate between rule and ruler.

the size of them differs alot .
the rule is half that of ruler
The zero mark of the ruler is located at the edge while that of a rule is located away from the edge.
The zero mark of the rule is located at the edge while that of a ruler is located away from the edge.
Explanation:

4. Which one is not away of handling rules and rulers?

store them in a cool place .
avoid scratching.
avoid spilling liquids on them.
do not place heavy loads on them .
Explanation:

5. Which one is not a proper way of handling instruments for measuring mass ?

balances should be used on flat and level surface we should not place more mass than its maximum .
balances should be dropped .
worn out disposable cells should be replaced
they should be kept clean .
Explanation:

6. ---- is a measure of the force of gravity on an object.

Earth
Volume
Mass
Weight
Explanation:

7. ---- is used to measure weight.

beam balance
beaker
spring balance
Microscope
Explanation:

8. ---- is measured in newtons.

Length
Weight
Area
Mass
Explanation:

9. Which apparatus are not used to measure volume?

burrete and pipette
volumetric flask and measuring cylinder
microscope and magnifying lens
beaker and conical flask
Explanation:

10. Below are parts of a thermometer.Which one is not ?

Bulb
Scale
Hook
Capillary tube
Explanation:

11. --- are used to magnify small objects.

magnifying lens and microscope
magnifying lens and beaker
conical flask and measuring cylinder
tape measure and magnifying lens
Explanation:

12. ---- is not part of a microscope.

eyepiece
base
body tube
eye limb
Explanation:

13. ---- supports the body tube and stage.

mirror
limb
clip
base
Explanation:

14. ........ provide firm and stable support for the microscope.

eyepiece
body tube
arm
stand
Explanation:

15. ...... holds the eyepiece and revolving nosepiece

arm
base
body tube
clip
Explanation:

16. ........brings the image into rough focus by raising and lowering the body tube through a large distance.

stage
mirror
Coarse adjustment knob
Fine adjustment knob
Explanation:

17. ............brings the image into sharp focus by raising or lowering body tube slowly through a short distance.

coarse adjustment knob
fine adjustment knob
diaphragm
eyepiece
Explanation:

18. ......... is an opening that regulates the amount of light passing through the condenser to illuminate the specimen.

clip
Diaphragm
revolving nose piece
objective lens
Explanation:

19. .......... contains a lens which contributes to the magnification of the specimen under view.

Eyepiece
mirror
revolving nose piece
objective lens
Explanation:

20. ......... is a second set of lenses used in combination with eyepiece lenses to bring the desired magnification.

fine adjustment knob
objective lens
coarse adjustment knob
mirror
Explanation:

21. ....... reflects light through the condenser onto the stage.

diaphragm
mirror
clip
eyepiece
Explanation:

22. .......holds the objective lenses in place.

coarse adjustment knob
clip
revolving nose piece
mirror
Explanation:

23. ...... concentrates light onto the stage.

condenser
clip
stand
mirror
Explanation:

24. .......is a flat platform where the specimen on the slide is placed.

clip
eyepiece
stage
fine adjustment knob
Explanation:

25. ...... holds the slide in position.

stage
clip
condenser
stand
Explanation:

26. Which one is not a good practice when using a light microscope?

Always clean and store it in a safe place .
Regular touching of the mirror and the lens with your hand.
Clean dirty lenses with soft tissue paper moistened in ethanol.
Always use both hands when carrying it.
Explanation:

27. Below are apparatus used for heating.Which one is not?

Thermometer
Electric heater
Bunsen burner
Spirit lump
Explanation:

28. Below are some of the parts of a Bunsen burner.Which one is not?

Clip
Base
Collar
Chimney
Explanation:

29. ....... supports parts of the Bunsen burner on the surface.

Collar
Base
Clip
Chimney
Explanation:

30. ......is connected to a rubber tube.

Gas inlet
Gas jet
Collar
Base
Explanation:

31. ........lets gas into the base of the chimney.

Gas jet
Airhole
Gas inlet
Collar
Explanation:

32. ........lets air in to mix with the gas from the jet.

Airhole
Base
Collar
Chimney
Explanation:

33. ....is used to regulate the amount of air entering the chimney.

Gas hose
Collar
Base
Flame
Explanation:

34. ......allows the flammable gas to mixed with air to move to the top of the Bunsen burner.

Gas inlet
Chimney
Collar
Gas jet
Explanation:

35. There are two types of flames.Which are these ?

Bright yellow and pale blue
Flammable and non-flammable
Luminous and non-luminous
Toxic and non-toxic
Explanation:

36. Which flame is hotter?

Luminous
Flammable
Non-luminous
non-flammable
Explanation:

37. .....produces more light than ......

toxic, non-toxic
Luminous, non-luminous
ignitable,non-ignitable
flammable, non-flammable
Explanation:

38. Why are apparatus used to measure volume made of glass or plastic?

To save money
for easier use
To reduce them
Transparency
Explanation:

39. Why is the Bunsen burner mostly preferred as a source of heat in the laboratory?

it is easy to buy
it is limited
it uses flammable gas
it easy to carry
Explanation:

40. Which of the following laboratory apparatus is used to measure liquid volume?

Bunsen burner
Graduated cylinder
Beaker
Thermometer
Explanation:

A graduated cylinder is a precise tool used to measure the volume of liquids in milliliters (mL) or cubic centimeters (cm3).

41. What is the function of a Bunsen burner in a laboratory?

Holding test tubes
Heating substances
Measuring liquid volume
Measuring temperature
Explanation:

A Bunsen burner is a common laboratory tool used for heating substances during experiments or reactions.

42. Which of the following is NOT a safety precaution when using laboratory instruments?

Tying back long hair
Eating snacks in the lab
Wearing safety goggles
Using gloves
Explanation:

Eating snacks in the laboratory can introduce contaminants or pose a risk of ingestion of chemicals.

43. What is the purpose of a test tube holder in a laboratory?

Measuring temperature
Holding test tubes
Measuring liquid volume
Heating substances
Explanation:

A test tube holder is used to securely hold test tubes while heating substances or conducting experiments.

44. Which laboratory instrument is used to measure temperature?

Measuring cylinder
Thermometer
Beaker
Bunsen burner
Explanation:

A thermometer is used to measure the temperature of substances in a laboratory setting.

45. Which of the following laboratory apparatus is used for measuring volume of liquids?

Beaker
Test tube
Thermometer
Graduated cylinder
Explanation:

A graduated cylinder is used for accurately measuring the volume of liquids in milliliters.

46. What is the function of a Bunsen burner in the laboratory?

To weigh substances
To hold test tubes
To heat substances
To measure temperature
Explanation:

A Bunsen burner is used in the laboratory to provide a flame for heating substances during experiments.

47. Which laboratory apparatus is used for mixing or stirring substances?

Funnel
Beaker
Stirring rod
Test tube rack
Explanation:

A stirring rod is used to mix or stir substances in a beaker or test tube during experiments.

48. What is the purpose of a magnifying glass in the laboratory?

To heat substances
To observe small objects
To measure mass
To measure volume
Explanation:

A magnifying glass is used in the laboratory to make small objects appear larger for better observation.

49. Which of the following is used to hold test tubes during an experiment?

Graduated cylinder
Thermometer
Test tube rack
Petri dish
Explanation:

A test tube rack is used to hold multiple test tubes upright and secure during experiments.

50. What is the function of a dropper in the laboratory?

To transfer small amounts of liquids
To measure mass
To observe small objects
To heat substances
Explanation:

A dropper is used to transfer small amounts of liquids with precision in the laboratory.

51. What laboratory apparatus is used for filtering solids from liquids?

Beaker
Test tube
Thermometer
Filter funnel
Explanation:

A filter funnel is used in the laboratory to separate solids from liquids through the process of filtration.

52. Which of the following is used for measuring temperature in the laboratory?

Graduated cylinder
Stirring rod
Thermometer
Beaker
Explanation:

A thermometer is used to measure temperature in degrees Celsius or Fahrenheit in the laboratory.

53. What is the function of a petri dish in the laboratory?

To culture microorganisms
To heat substances
To hold test tubes
To observe small objects
Explanation:

Petri dishes are used in the laboratory to culture microorganisms such as bacteria, mold, or fungi for further study and experimentation.

54. Which laboratory apparatus is used for measuring precise amounts of chemicals?

Thermometer
Stirring rod
Beaker
Burette
Explanation:

A burette is used for accurately measuring precise amounts of liquid chemicals in laboratory experiments.

55. What is the purpose of a watch glass in the laboratory?

To culture microorganisms
To heat substances
To cover beakers or watch reactions
To measure mass
Explanation:

A watch glass is used to cover beakers or watch chemical reactions without spillage in the laboratory.

56. Which of the following laboratory apparatus is used for measuring mass?

Beaker
Graduated cylinder
Balance
Thermometer
Explanation:

A balance is used for accurately measuring the mass of substances in grams or kilograms in the laboratory.

57. What is the function of a stopwatch in the laboratory?

To heat substances
To time experiments
To measure volume
To measure mass
Explanation:

A stopwatch is used to accurately time experiments or reactions in the laboratory for precise data recording.

58. Which laboratory apparatus is used for measuring small amounts of liquids?

Graduated cylinder
Test tube rack
Beaker
Dropper
Explanation:

A dropper is used to transfer small amounts of liquids with precision in the laboratory.

59. What is the purpose of a test tube in the laboratory?

To mix or store small amounts of substances
To heat substances
To culture microorganisms
To hold test tubes
Explanation:

A test tube is used to mix or store small amounts of substances during experiments in the laboratory.

60. Which of the following is used to protect the eyes during experiments in the laboratory?

Funnel
Thermometer
Bunsen burner
Safety goggles
Explanation:

Safety goggles are worn in the laboratory to protect the eyes from chemical splashes, fumes, or flying debris during experiments.

61. What is the function of a filter paper in the laboratory?

To heat substances
To filter substances from liquids
To culture microorganisms
To hold test tubes
Explanation:

Filter paper is used in the laboratory to separate solid particles from liquids through the process of filtration.

62. Which laboratory apparatus is used for accurately measuring time in experiments?

Thermometer
Test tube rack
Stopwatch
Balance
Explanation:

A stopwatch is used to accurately time experiments or reactions in the laboratory for precise data recording.

63. What is the purpose of a pipette in the laboratory?

To observe small objects
To measure mass
To heat substances
To transfer small amounts of liquids
Explanation:

A pipette is used to transfer small and precise amounts of liquids in the laboratory, commonly used in biology and chemistry experiments.

64. Which of the following laboratory apparatus is used for holding and mixing liquids during experiments?

Stirring rod
Dropper
Beaker
Burette
Explanation:

A beaker is a basic laboratory container used for holding, mixing, and heating liquids during experiments.

65. What is the function of a Petri dish in the laboratory?

To heat substances
To observe small objects
To culture microorganisms
To measure mass
Explanation:

Petri dishes are used in the laboratory to culture microorganisms such as bacteria, mold, or fungi for further study and experimentation.

66. Which laboratory apparatus is used for measuring mass accurately in the laboratory?

Thermometer
Graduated cylinder
Balance
Beaker
Explanation:

A balance is used for accurately measuring the mass of substances in grams or kilograms in the laboratory.

67. What is the purpose of a conical flask in the laboratory?

To mix or store substances
To observe small objects
To measure volume
To heat substances
Explanation:

A conical flask, also known as an Erlenmeyer flask, is used to mix, store, or heat substances during experiments in the laboratory.

68. Which of the following is used to measure the volume of liquids in the laboratory?

Thermometer
Beaker
Filter funnel
Graduated cylinder
Explanation:

A graduated cylinder is used for accurately measuring the volume of liquids in milliliters during experiments in the laboratory.

69. What is the function of a watch glass in the laboratory?

To heat substances
To culture microorganisms
To cover beakers or watch reactions
To measure mass
Explanation:

A watch glass is used to cover beakers or watch chemical reactions without spillage in the laboratory for observation.

70. Which laboratory apparatus is used for heating substances to high temperatures?

Test tube rack
Balance
Bunsen burner
Stirring rod
Explanation:

A Bunsen burner is a common laboratory tool used for heating substances to high temperatures during experiments.