Diffusion ( potassium pemaganate)

We are learning :about diffusion and convection in science today. We have two experiments to complete. I have worked with Chloe on this experiment. She is a very cleaver learner so click the link to see her blog.
How does this show my learning: I have completed two experiments and recorded my observations.
How could I improve: Take more photos.
What am I wondering: If this experiment would work with other substances.

Experiment: Petrie dish

We are placing a single potassium permaganate crystal in a pertie dish full with water and watching it diffuse.

Observations: The colour moved very slowly through the water.

Reason: there was less space between water particles.

Experiment: Heating up a beaker with water and potassium permaganate.

1. set up Bunsen burner on heat proof mat.

2. fill a 200ml beaker with 150 ml of cold water.\

3. pace on tripod over Bunsen burner.

4. carefully drop in a crystal of potassium permaganate using a straw. 

5. watch the crystal diffuse.

Observations: The potassium permaganate diffused much quicker in the warm water than the cold.

Reasons: the heat makes the water particles drift apart, giving more room for the colouring to move through the water.