G4 Project – Group 2

Ben WuPatrick Quinn

Frankie YuRyan McCloskey

Research Question and VariablesHow does the concentration/presence of an

impurity affect the surface tension of water?

Procedure

Raw DataWATER Number of Drops

Trial 1 Trial 2 Trial 3 Trial 4 Trial 5

Water 28 31 29 30 29

SALT Number of Drops

Concentration (Salt/Water)

Trial 1 Trial 2 Trial 3 Trial 4 Trial 5

5g/50ml 30 27 28 27 28

10g/50ml 23 25 24 23 24

15g/50ml 22 24 25 25 25

7g/50ml 26 26 25 25 26

20g/50ml - - - - -

SUGAR Number of Drops

Concentration (Sugar/Water)

Trial 1 Trial 2 Trial 3 Trial 4 Trial 5

5g/50ml 29 31 31 29 31

10g/50ml 29 28 29 28 27

15g/50ml 24 26 25 26 25

7g/50ml 30 29 31 29 29

20g/50ml 23 24 24 23 24

SOAP Number of Drops

Concentration (Soap/Water)

Trial 1 Trial 2 Trial 3 Trial 4 Trial 5

5g/50ml 19 18 18 17 17

10g/50ml 16 16 15 16 15

15g/50ml 15 14 15 13 14

7g/50ml 17 17 16 16 16

20g/50ml 13 14 15 13 12

Analysis/Interpretation of Data

Conclusion And Evaluation