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6R Science 01

Total questions: 40

Worksheet time: 20mins

Name
Class
Date
1.

The following diagram shows a warning symbol that is shown in the laboratory.


What is the meaning of this symbol?

a)

Explosive

b)

Flammable

c)

Toxic or poisonous

d)

Corrosive

e)

Irritant

2.

The following diagram shows a warning symbol that is shown in the laboratory.


What is the meaning of this symbol?

a)

Radioactive

b)

Corrosive

c)

Toxic or poisonous

d)

Flammable

e)

Explosive

3.

The following diagram shows a warning symbol that is shown in the laboratory.


What is the meaning of this symbol?

a)

Explosive

b)

Flammable

c)

Toxic or poisonous

d)

Irritant

e)

Radioactive

4.

The following diagram shows a warning symbol that is shown in the laboratory.


What is the meaning of this symbol?

a)

Explosive

b)

Flammable

c)

Irritant

d)

Corrosive

e)

Radioactive

5.

The following diagram shows a warning symbol that is shown in the laboratory.


What is the meaning of this symbol?

a)

Explosive

b)

Irritant

c)

Toxic or poisonous

d)

Corrosive

e)

Radioactive

6.

The following diagram shows a warning symbol that is shown in the laboratory.


What is the meaning of this symbol?

a)

Flammable

b)

Toxic or poisonous

c)

Corrosive

d)

Irritant

e)

Radioactive

7.

操纵性变数

a)

Manipulated variable

b)

Constant variable

c)

Responding variable

d)

Characteristics

8.

固定性变数

a)

Manipulated variable

b)

Constant variable

c)

Responding variable

d)

Hypothesis

9.

反应性变数

a)

Manipulated variable

b)

Constant variable

c)

Responding variable

d)

Inference

10.

实验的目的

a)

Trend of change

b)

Observation

c)

Conclusion

d)

Aim of the investigation

11.

推断

a)

Relationship

b)

Inference

c)

Observation

d)

Predict

12.

观察

a)

Observation

b)

Characteristics

c)

Information

d)

Reason

13.

假设

a)

Predict

b)

Trend of change

c)

Conclusion

d)

Hypothesis

14.

预测

a)

Observation

b)

Bar chart

c)

Predict

d)

Table

15.

变化形式

a)

Aim of the investigation

b)

Trend of change

c)

Relationship

d)

Inference

16.

条形统计图

a)

Constant variable

b)

Table

c)

Bar chart

d)

Characteristics

17.

表格

a)

Reason

b)

Table

c)

Bar chart

d)

Information

18.

关系

a)

Relationship

b)

Observation

c)

Hypothesis

d)

Conclusion

19.

资料

a)

Responding variable

b)

Information

c)

Hypothesis

d)

Trend of change

20.

结论

a)

Inference

b)

Reason

c)

Variable

d)

Conclusion

21.

特征

a)

Characteristics

b)

Bar chart

c)

Information

d)

Conclusion

22.

Apparatus for measuring the volume of liquids.

a)

Burette

b)

Pipette

c)

Measuring cylinder

d)

Filter funnel

23.

Apparatus for measuring the volume of liquids.

a)

Beaker

b)

Conical flask

c)

Measuring cylinder

d)

Burette

24.

Apparatus for measuring the volume of liquids.

a)

Burette

b)

Pipette

c)

Wire gauze

d)

Test tube

25.

Apparatus for filtering.

a)

Boiling tube

b)

Bell jar

c)

Crucible

d)

Filter funnel

26.

Apparatus for evaporating.

a)

Test tube holder

b)

Evaporating dish

c)

Flat-bottom flask

d)

Conical flask

27.

Apparatus for heating.

a)

Retort stand

b)

Bunsen burner

c)

Tripod stand

d)

Clamp

28.

Apparatus for heating.

a)

Boiling tube

b)

Round-bottom flask

c)

Evaporating dish

d)

Crucible

29.

Apparatus for heating.

a)

Test tube holder

b)

Tripod stand

c)

Test tube

d)

Test tube rack

30.

Apparatus for heating.

a)

P is tripod stand, Q is wire gauze.

b)

P is wire gauze, Q is tripod stand.

c)

P is clamp, Q is retort stand.

d)

P is retort stand, Q is clamp.

31.

For holding and supporting apparatus.

a)

R is clamp, S is retort stand.

b)

R is tripod stand, S is test tube holder.

c)

R is retort stand, S is clamp.

d)

R is test tube holder, S is tripod stand.

32.

For holding and supporting apparatus.

a)

Test tube

b)

Gas jar

c)

Test tube rack

d)

Pipette

33.

It is used for containing small amounts of chemicals or for mixing solutions.

a)

Test tube

b)

Boiling tube

c)

Conical flask

d)

Beaker

34.

It is a scaled-up test tube with larger size. It is made from glass that can withstand high temperature as it is used for heating chemicals.

a)

Test tube

b)

Boiling tube

c)

Beaker

d)

Conical flask

35.

It is used for containing, mixing and heating large amounts of chemicals and liquids.

a)

Round-bottom flask

b)

Conical flask

c)

Beaker

d)

Gas jar

36.

It is used for containing, mixing and heating large amounts of chemicals and liquids. It is also used for collecting filtrates.

a)

Crucible

b)

Beaker

c)

Round-bottom flask

d)

Conical flask

37.

It is used for containing chemicals used in preparing gases when heating is required.

a)

Round-bottom flask

b)

Flat-bottom flask

c)

Bell jar

d)

Bunsen burner

38.

It is used for containing chemicals used in preparing gases when no heating is required.

a)

Filter funnel

b)

Measuring cylinder

c)

Round-bottom flask

d)

Flat-bottom flask

39.

It is used for collecting gas.

a)

Gas jar

b)

Bell jar

c)

Jar

d)

Burette

40.

It is used for enclosing samples and for separating samples from the surroundings.

a)

Bell

b)

Bell jar

c)

Evaporating dish

d)

Boiling tube

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