Osmosis

Question 1

Reliable

Answer 1

Has it been repeated? (how repeatable the experiment is. How many times you can repeat the experiment and get the same results) Are the results similar?

Question 2

Accurate

Answer 2

Is the equipment giving the true volume? (how close to the true value) e.g. Is the potato really 3.1g

Question 3

Calculate % change in mass

Answer 3

final mass - initial mass / initial mass * 100

Question 4

definition

Answer 4

The movement of water molecules from an area of high concentration to an area of low concentration a cross a partially permeable membrance.

Question 5

How can we keep all the cells the same?

Answer 5

By making/ keeping them the same size and mass

Question 6

How are we safe?

Answer 6

Careful when using a scapel because it is sharp.

No water near top pan balance (electricity)

Question 7

Osmosis practical

Answer 7

introduce potatos with different mass in water with salt and see if the mass changes after time.