Dry

Water

Salt Water

Sugar Water

Initial Weight

5.81g

5.36g

5.73g

5.45g

Final Weight

5.70g

6.52g

6.22g

6.05g

Weight Difference

Lost 0.11g

Gain 1.16g

Gain 0.49g

Gain 0.60g

Initial Volume

40mL

40mL

40mL

Final Volume

0mL

10mL

7mL

Volume Difference

Lost 40mL

Lost 30mL

Lost 33mL

Diffusion is the movement of a substance from an area of high concentration to an area of low concentration. Diffusion happens in liquids and gases because their particles move randomly from place to place. Diffusion is an important process for living things; it is how substances move in and out of cells.

Osmosis