This week in Chemicals & Chaos (science) we are looking at Particle theory & Diffusion.
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.
Particles are extremely small units of matter.
Particles:
- All matter is made up of particles.
- All particles of one substance are identical
- The particles of matter are in constant motion
- Temperature affects the speed at which particles move
- Particles have forces of attraction between them
- There are spaces between particles.
Aim:
Investigate if particles diffuse faster in hot or cold water.
Hypothesis:
I think that the particles will diffuse faster in hot water, because I think that when particles are heated they move faster.
Equipment:
- 2 containers
- Potassium Permangonate
- Hot Water
- Cold Water
- Fill one container with Hot water and the other with Cold water.
- Add a little bit of Potassium Permangonate
- Observe the results
As show in the photo once the potassium was added to both containers the container with the hot water dissolved the potassium faster than the cold water container.
Results:
The potassium Permangonate dissolved faster in hot water with heat rather than cold water.
Well done Sierra! You have covered all of the headings asked. And explained well what diffusion is and what your results were. Next time, I would love to see more explanation of why the results you observed happened, explain with scientific ideas.
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