Science Experiments

Posts Tagged ‘experiments’

Question: is this a good independent science experiment?

were having a science fair night and we have to do a science tthing that is measurable or timeable so do you think a good experiment would be “how does the amount of chocolate chips in a cookie effect cooking time?”
i would make two batches of chocolate chip cookies, one with double the chocolate chips or something and see which one takes longer…

Answer: I like where it’s trying to go, but I assume the difference in cooking time will be negligible, and won’t fully allow you to illustrate the effect of the chocolate.

Science Experiment #1

Question: Would a ammeter work for an experiment that requires a micro-ammeter?

I wanted to do this experiment I found online where you create a simple solar cell in your kitchen. I went and bought the ammeter we need for it (which cost me 40 bucks) but then i realized it requires a micro-ammeter. Would my experiment still work or can u suggest other experiments using an ammeter. It for our eighth grade science fair and I want to win!
I bought it online so it would be pretty hard to exchange it and the experiment expects 50 micro-amps while my ammeter is a 0-50 scale

Answer: It just depends on the range(s) of the ammeter and the current you are expecting from your solar cell. So long as the current from the solar cell is large enough to register on your ammeter then you should be fine.

Root Vegetable Cannon – Kitchen Science

Question: What are some really cool/interesting Science Experiments that I can do at home?

I’ve tried the egg in the bottle, using matches experiment, the water into a glass using matches, and some others; all of which were great!

Any other cool experiments would be fun to try, Thanks!

Answer: I would suggest the following experiments:

1) Growing mold on a slice of old bread.
All you need for this is a slice of old bread, a plastic bag that can be sealed and a small amount of water.
Put the bread and a few teaspoons of water into a plastic bag and seal it. Place the bag in a dry/warm area and leave it there for several days to a week. Every day, check the bag. For the first few days, you can add a teaspoon of water (but don’t oversaturate it) if the bread seems dry. After a couple of days, you should start seeing mold growing on the bread. It may take several forms and different colors. (Once you see the mold growing, do not keep adding water.)

2) Demonstration of capillary action
You will need a celery stalk (or carnation), a tall glass, water, and food coloring.
Take either a celery stalk or a carnation (white flower is preferred). Place the plant material into a tall glass with colored water. Place this in the fridge. Check it every day. Within a few days, you should start to see colored lines (from the colored water) in the celery stalk or carnation. If you let the experiment continue for a while, the top of the celery stalk or carnation flowers should show some color.

Worlds coolest science experiment, to do at home!!!!