Science Experiments

Posts Tagged ‘tools’

Question: science project help! do objects roll an incline at the same speed?

i’m doing a science project and im doing the experiment above ^, but (more specifically would be “how does the diameter of a disk affect its speed down an incline). anyways, i was wondering if anyone had did this science experiment before, or if they knew the:
list of materials
the procedures
and what are the few sample of data table headings. please respond asap, thank you in advance.

Answer: Here is some information that should help you. Best of luck with your project.

Water Flowing Up 24 meters Not Magic, Just Science! Gravity of Life (Part3)

Question: Why are my science results so strange? 10ptssss?

So, for my science experiment I did How does the type of drink, with sugar added, affect the time the sugar takes to dissolve?

I predicted (with certain reasoning) that water would be the fastest, then OJ, then pepsi, creaming soda and then lemon squash, but why have they not followed this?

Here are the results

Orange Juice2.15
Distilled Water5.40
Creaming Soda1.33
Pepsi Max 6.39
Lemon Squash7.12

Answer: A couple of things come to mind looking at your list. If you’re dissolving sugar into any one of the drinks, it would make sense to think the one w/ the least amount of sugar present would dissolve the fastest. But in your experiment, DI water was 3rd (behind cream soda, which should have lots of sugar added) How did you determine the time to complete dissolution? Was it visual? OJ is typically opaque, meaning that you may no have been able to see suspended sugars as well as some of the other, clear drinks – this may have led you to believe a solution was reached sooner than it was. Also, I would expect the carbonation in the sodas to help w/ dissolution too, by agitation.

Ultimately, you formed a hypothesis, tested it, and found results. Try rerunning the experiment, record the pH, and vary temperatures, stirring rate, carbonated vs. flat, the volumes of liquids, and the amounts of sugar added; see if the original results hold up. Also, try running multiple identical experiments (three time in OJ, for example) to see if you’re getting reproducible results. Doing all of this will help you determine what factors truly affect dissolution, and will help you form a more accurate hypothesis.

Cold fusion experiment- positive results

Question: I need a catchy title for my son’s science fair project.?

He is doing an experiment with burning money. He soaks a dollar bill in a mixture of alcohol and water. Then he lights the bill. It won’t burn, of course. The alcohol burns off leaving a wet dollar bill. Anyway, please HELP project due MONDAY. Thanks

Answer: Makes me think of the phrase “He’s got money to burn.” How about a variation of that:

Money to Burn: Studying the anti-inflammatory property of dollar bills

Money to Burn – Cool Science Experiment