Grade 7 Integrated Science – Laboratory Apparatus and Instruments Quiz

1. Which instrument is not used to measure length?

rules
rulers
tape measure
Calibrator
Explanation:

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

ruler
rule
calibrator
tape measure
Explanation:

3. Differentiate between rule and ruler.

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

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

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

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

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

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

Weight
Volume
Mass
Earth
Explanation:

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

beaker
Microscope
beam balance
spring balance
Explanation:

8. ---- is measured in newtons.

Area
Weight
Length
Mass
Explanation:

9. Which apparatus are not used to measure volume?

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

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

Scale
Capillary tube
Hook
Bulb
Explanation:

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

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

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

base
eye limb
eyepiece
body tube
Explanation:

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

mirror
limb
clip
base
Explanation:

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

stand
body tube
eyepiece
arm
Explanation:

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

body tube
base
arm
clip
Explanation:

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

Fine adjustment knob
stage
Coarse adjustment knob
mirror
Explanation:

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

diaphragm
fine adjustment knob
coarse adjustment knob
eyepiece
Explanation:

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

clip
revolving nose piece
objective lens
Diaphragm
Explanation:

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

mirror
revolving nose piece
Eyepiece
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
mirror
coarse adjustment knob
Explanation:

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

clip
mirror
eyepiece
diaphragm
Explanation:

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

revolving nose piece
clip
mirror
coarse adjustment knob
Explanation:

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

stand
condenser
clip
mirror
Explanation:

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

clip
stage
eyepiece
fine adjustment knob
Explanation:

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

clip
stage
condenser
stand
Explanation:

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

Regular touching of the mirror and the lens with your hand.
Clean dirty lenses with soft tissue paper moistened in ethanol.
Always clean and store it in a safe place .
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
Chimney
Base
Collar
Explanation:

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

Collar
Clip
Chimney
Base
Explanation:

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

Gas inlet
Collar
Base
Gas jet
Explanation:

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

Airhole
Gas inlet
Gas jet
Collar
Explanation:

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

Chimney
Base
Collar
Airhole
Explanation:

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

Base
Flame
Gas hose
Collar
Explanation:

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

Gas inlet
Collar
Chimney
Gas jet
Explanation:

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

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

36. Which flame is hotter?

Flammable
Non-luminous
Luminous
non-flammable
Explanation:

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

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

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

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

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

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

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

Beaker
Thermometer
Bunsen burner
Graduated cylinder
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?

Measuring temperature
Holding test tubes
Measuring liquid volume
Heating substances
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
Using gloves
Wearing safety goggles
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
Heating substances
Measuring liquid volume
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?

Thermometer
Beaker
Measuring cylinder
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?

Test tube
Thermometer
Beaker
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 measure temperature
To heat substances
To weigh substances
To hold test tubes
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
Test tube rack
Stirring rod
Beaker
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 observe small objects
To measure volume
To measure mass
To heat substances
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?

Test tube rack
Petri dish
Graduated cylinder
Thermometer
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 heat substances
To observe small objects
To measure mass
To transfer small amounts of liquids
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
Thermometer
Test tube
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?

Thermometer
Graduated cylinder
Stirring rod
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 heat substances
To culture microorganisms
To observe small objects
To hold test tubes
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?

Beaker
Thermometer
Burette
Stirring rod
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 measure mass
To cover beakers or watch reactions
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?

Thermometer
Balance
Graduated cylinder
Beaker
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 measure mass
To measure volume
To time experiments
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?

Test tube rack
Graduated cylinder
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 hold test tubes
To mix or store small amounts of substances
To culture microorganisms
To heat substances
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?

Thermometer
Bunsen burner
Funnel
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 filter substances from liquids
To culture microorganisms
To heat substances
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?

Balance
Test tube rack
Stopwatch
Thermometer
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 transfer small amounts of liquids
To heat substances
To observe small objects
To measure mass
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
Burette
Beaker
Dropper
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 culture microorganisms
To measure mass
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.

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

Graduated cylinder
Thermometer
Beaker
Balance
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 heat substances
To measure volume
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?

Beaker
Thermometer
Graduated cylinder
Filter funnel
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 measure mass
To cover beakers or watch reactions
To culture microorganisms
To heat substances
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?

Stirring rod
Balance
Test tube rack
Bunsen burner
Explanation:

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