# viscosity

## Viscosity races – investigating the flow of liquids

Aim: to test the rate at which different fluids flow.

Materials needed
A tape measure

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

30mls of each different liquid to test (water, oil, tomato sauce,

Pencilshoney and mayonnaise)

Small containers

Small containers

Recording tables/sheets

A plastic drop cloth to catch the mess

Calculators

Method:

1. Measure out the 30mls 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 have decided and measure the distance travelled.

5. Record your results in the table.

6. Repeat for each of the 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 result as you go.

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

12.Using the calculator, determine the mean distance and speed for each liquid

1. Measure out the 30mls 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 have decided and measure the distance travelled.

5. Record your results in the table.

6. Repeat for each of the 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 result as you go.

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

12.Using the calculator, determine the mean distance and speed for each liquid

Materials needed
A tape measure

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

30mls of each different liquid to test (water, oil, tomato sauce,

Pencilshoney and mayonnaise)

Small containers

Small containers

Recording tables/sheets

A plastic drop cloth to catch the mess

Calculators

Method:

1. Measure out the 30mls 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 have decided and measure the distance travelled.

5. Record your results in the table.

6. Repeat for each of the 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 result as you go.

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

12.Using the calculator, determine the mean distance and speed for each liquid

1. Measure out the 30mls 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 have decided and measure the distance travelled.

5. Record your results in the table.

6. Repeat for each of the 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 result as you go.

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

12.Using the calculator, determine the mean distance and speed for each liquid