dau coroana repede



Look again at the experimental protocol. Then answer the questions below.

Materials:

2 identical glass beakers

hot water (45°C)

cold water (5°C)

blue food coloring

2 stopwatches

Procedure:

Pour 200 milliliters of hot water in one beaker.

Pour 200 milliliters of cold water in the other beaker.

Put three drops of food coloring into each beaker.

Measure how long it takes the food coloring to spread evenly throughout the water in each beaker.

Record the times in the data table.

Clean the beakers.

Repeat steps 1 through 6 two more times.

Data table:

Diffusion time in seconds Trial 1 Trial 2 Trial 3

beaker with hot water

beaker with cold water

How much water will each beaker contain?

milliliters

How many drops of food coloring will go into each beaker?

drops

How many times will steps 1 through 6 be completed?

times