Memory Anchor:

• Super Challenge:

  Stretch:

  Challenge:

Key Questions:

1. What is osmosis?
   • Osmosis is the diffusion of water from a dilute solution to a concentrated solution through a partially permeable membrane.
2. What are the important things to include in a diagram that shows osmosis?
   • Partially-permeable membrane, concentration of water and of sugar, arrows to show the net movement of water
3. How do you calculate the rate of water uptake?
   • amount of water / time taken
4. How do you calculate a percentage?
   • (thing you are interested in / total amount ) x 100
5. How do you calculate the percentage gain and loss of mass of plant tissue?
   • ((end mass - start mass) / start mass )) x 100
6. What marking points are important to consider when plotting, drawing and interpreting graphs?