Observation of size and shape on diffusion rate Table 2 Figure/Shape Draw the shape Dimensions in centimeters Area (cm2) Time in minutes
Big circle: 8 cm diameter 50.24 cm2 11 minutes
Big rectangle: 5 cm x 10 cm 50 cm2 16 minutes
Big square: 6.2 cm x 6.2 cm 38.5 cm2 14 minutes
Small circle: 6 cm diameter 28.26 cm2 8 minutes
Small rectangle: 4 cm x 7 cm 28 cm2 10 minutes
Small square: 4.39 cm x 4.39 cm 19.6 cm2 9 minutes
1. Describe what happened to the filter paper figures in the colored water over time. What is this process called?
The color started up the flap and started to dye the filter paper from the center outward. It is called diffusion.
2. Which figure took:

a. the longest time?
b. the shortest time?
3. According to your calculations, how did the area of the different figures compare?
4. Did the shape of the paper affect the results?