Grade 7 Integrated Science – Laboratory Apparatus and Instruments Quiz

1. Which instrument is not used to measure length?

Calibrator
rules
tape measure
rulers
Explanation:

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

ruler
tape measure
calibrator
rule
Explanation:

3. Differentiate between rule and ruler.

the size of them differs alot .
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.
the rule is half that of ruler
Explanation:

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

avoid scratching.
store them in a cool place .
do not place heavy loads on them .
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
balances should be used on flat and level surface we should not place more mass than its maximum .
they should be kept clean .
Explanation:

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

Mass
Earth
Volume
Weight
Explanation:

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

beaker
spring balance
beam balance
Microscope
Explanation:

8. ---- is measured in newtons.

Weight
Area
Mass
Length
Explanation:

9. Which apparatus are not used to measure volume?

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

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

Scale
Hook
Capillary tube
Bulb
Explanation:

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

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

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

eyepiece
eye limb
body tube
base
Explanation:

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

clip
base
mirror
limb
Explanation:

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

body tube
eyepiece
stand
arm
Explanation:

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

base
body tube
clip
arm
Explanation:

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

mirror
Fine adjustment knob
stage
Coarse adjustment knob
Explanation:

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

diaphragm
eyepiece
coarse adjustment knob
fine adjustment knob
Explanation:

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

clip
Diaphragm
objective lens
revolving nose piece
Explanation:

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

objective lens
revolving nose piece
mirror
Eyepiece
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.

eyepiece
mirror
diaphragm
clip
Explanation:

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

mirror
revolving nose piece
coarse adjustment knob
clip
Explanation:

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

mirror
stand
clip
condenser
Explanation:

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

stage
fine adjustment knob
eyepiece
clip
Explanation:

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

condenser
stage
stand
clip
Explanation:

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

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

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

Thermometer
Electric heater
Spirit lump
Bunsen burner
Explanation:

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

Chimney
Collar
Base
Clip
Explanation:

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

Clip
Chimney
Base
Collar
Explanation:

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

Gas inlet
Collar
Gas jet
Base
Explanation:

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

Gas jet
Airhole
Collar
Gas inlet
Explanation:

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

Chimney
Airhole
Collar
Base
Explanation:

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

Gas hose
Collar
Flame
Base
Explanation:

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

Gas inlet
Chimney
Gas jet
Collar
Explanation:

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

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

36. Which flame is hotter?

Non-luminous
non-flammable
Luminous
Flammable
Explanation:

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

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

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

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

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

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

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

Beaker
Graduated cylinder
Thermometer
Bunsen burner
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?

Heating substances
Holding test tubes
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
Using gloves
Wearing safety goggles
Eating snacks in the lab
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?

Heating substances
Measuring liquid volume
Holding test tubes
Measuring temperature
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
Beaker
Thermometer
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?

Graduated cylinder
Test tube
Beaker
Thermometer
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 heat substances
To weigh substances
To hold test tubes
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?

Test tube rack
Stirring rod
Funnel
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 heat substances
To measure mass
To observe small objects
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
Petri dish
Test tube rack
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 measure mass
To transfer small amounts of liquids
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?

Thermometer
Filter funnel
Test tube
Beaker
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?

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

Stirring rod
Burette
Beaker
Thermometer
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 heat substances
To measure mass
To cover beakers or watch reactions
To culture microorganisms
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
Balance
Thermometer
Graduated cylinder
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 measure mass
To time experiments
To heat substances
To measure volume
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
Dropper
Graduated cylinder
Beaker
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 culture microorganisms
To heat substances
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
Safety goggles
Bunsen burner
Thermometer
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 culture microorganisms
To hold test tubes
To filter substances from liquids
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?

Stopwatch
Test tube rack
Balance
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 heat substances
To measure mass
To transfer small amounts of liquids
To observe small objects
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?

Burette
Dropper
Stirring rod
Beaker
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 measure mass
To culture microorganisms
To observe small objects
To heat substances
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?

Beaker
Thermometer
Graduated cylinder
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 observe small objects
To heat substances
To mix or store 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?

Thermometer
Graduated cylinder
Filter funnel
Beaker
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 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 for observation.

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

Stirring rod
Test tube rack
Balance
Bunsen burner
Explanation:

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