30 September 2026
The affect of surface area on diffusion - start
Year 10 looked at the affect of surface area on the rate of diffusion. These pictures show the same volume cubes of pink alkali agar cut up so they have different surface areas. They were then place in acid, which diffuses into the agar and neuralises the alkali making it clear. You can see the…
30 September 2026
Acids and alkalis
On Tuesday, Year 8 made an indicator out of red cabbage. Can you guess which is beaker contains the acid and which the alkali?