OrigamiPlanet wrote:No you're fine! Here's how I'd do it though just to make things easier (and if you can try to answer it, too!).Jacobi wrote: Very, very good. Sorry, I should have written A-E. I was just trying to cover the design part of the experiment - which includes all of these things.
You can't have part B or C without A, or parts D and E without A, B, and C, or part M without A-E. You have to build up each component.
If this question. caused significant incovenience, I apologize.
Prompt: Using the given materials, create a potential experiment about diffusion and list the variables.
- Water (you get as much as you need)
- Red food coloring
- Blue food coloring
- Green food coloring
- 3 popsicle sticks
- 5 250 mL beakers
- A ruler
- A timepiece
The person doesn't need to state their hypothesis, but it does encourage them to create one mentally at the very least, if that makes sense!
For each color (and no color): 1. Add 250 mL of water to a beaker. 2. Add 4 drops of the coloring to each beaker. 3. Soak a popsicle stick in the coloring for 5 minutes. 4. Measure how much the coloring diffuses. 5. Record the data. 6. Repeat 1-5 for the opposite side of the stick.
Independent: Color of the Coloring - the color labeled on the food coloring bottle. Levels are red, green, blue, and none. Dependent: Distance traveled by the color (or water) - measured from point of contact with the water to highest mark of the color or water. Controlled: concentration of coloring, soak time, popsicle stick type.
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