Introduction:
Diffusion is the process of movement of particles from an area of high concentration to an area of low concentration. The rate of diffusion is affected by several factors, including temperature. In this activity, we will demonstrate how the rate of diffusion increases with increasing temperature.

Materials:
- Two beakers
- Hot water
- Ice cubes
- Food coloring
- Stopwatch
- Stirring rod

Procedure:
1. Fill one beaker with hot water and the other with cold water.
2. Add a few drops of food coloring to both beakers.
3. Stir the solutions in both beakers for a few seconds.
4. Start the stopwatch and observe how long it takes for the food coloring to diffuse in both beakers.
5. Record the time taken for the food coloring to diffuse in both beakers.
6. Repeat the experiment using ice cubes to cool the water in one beaker and a hot plate to heat the water in the other beaker.
7. Record the time taken for the food coloring to diffuse in both beakers.

Observations:
1. The food coloring diffuses faster in the hot water than in the cold water.
2. The time taken for the food coloring to diffuse in the hot water is less than the time taken for the food coloring to diffuse in the cold water.
3. When the water in one beaker is cooled using ice cubes and the other beaker is heated using a hot plate, the food coloring diffuses faster in the hot water and slower in the cold water.

Explanation:
The rate of diffusion is affected by temperature because temperature affects the kinetic energy of the particles. When the temperature is high, the particles have more kinetic energy and move faster, increasing the chances of collisions and therefore increasing the rate of diffusion. Conversely, when the temperature is low, the particles have less kinetic energy and move slower, decreasing the chances of collisions and therefore decreasing the rate of diffusion.

Conclusion:
In this activity, we have demonstrated that the rate of diffusion increases with increasing temperature. This is because the particles have more kinetic energy at higher temperatures, which increases the chances of collisions and therefore increases the rate of diffusion.

The rate of diffusion increases when temperature increases.this can be explain by a activity.
to take the smell of cold food that is kept in the refrigerator we have to go close and have to smell the fragrance of the food but the smell of the hot food reaches us from far away this is because the hot food has more temperature than the cold foods and therefore the rate of diffusion or the intermixing of the particles is more .