Best way to do this might be using photos. Saw something on the ABC once which was similar. People of various ages sorted pictures into dangerous/not dangerous piles and apparently teenagers got
2. Evaluate how much salt is needed to keep sand from freezing.
Saw something once about truck drivers in the US who, for some reason, were driving sand halfway across the country in freezing weather and their sand kept freezing. Apparently salt fixes this. Did some research and some people said 5% salt, some 50%. Could use different types of salt as well (some people suggested Potassium Chloride, some Calcium Chloride etc.).
3. If all else fails, generic "does music affect plant growth?" experiment is always available.
The level of work you have currently covered is no where near what is required of you. You need to step up and actually do some work and find out exactly how you're going to do your experiment. For example, 1 has FAAAR too many variables for you to consider, so you can't even contemplate doing that one.
ReplyDeleteSorry Ms Zhang!! I'm doing more work now :)
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