Viscosity Races

By Ashton 6C

Aim

To test the rate at which different fluids flow.

Materials needed:

A stop watch



A tape measure



A ramp – a table a two tote trays (secures with masking tape).



30mls of each different liquid to test (water, oil, tomato sauce, honey and mayonnaise)



Small containers



Pencils



Recording tables/sheets



A plastic drop cloth to catch the mess



Calculators

Method:

1. Measure out 30 mls of each liquid.


2. Set your stop watch to zero.


3. Tip one liquid at a time from the top of the ramp. Remember to communicate with your group to ensure the timer starts as you tip the liquid.


4. Let the liquid flow for the set time you decided and measure the distance travelled.


5. Record your results in the table.


6. Repeat for each type of liquid, recording your results as you go.


7. Clean your ramp for the next test.


8. Tip one liquid down the ramp and time how long it takes to reach the bottom.


9. Record your results in the table.


10. Repeat for each type of liquid, recording your results as you go.


11. Record each group’s results as they become available.


12. Using the calculator. Determine the mean distance and speed of each liquid.