Science Experiments

Archive for July, 2006

Question: I REALLY NEED HELP!!!!! Any ideas for a science experiment?

I need a science question that I can experiment with. And it must be testible and measurable. Any ideas? It’s due Thursday and I still have nothing to test. It’s for my 9th grade Physics class.
It must be simple, fastish, easy, and able to do outside of class please!!!! I can’t think of anything. And it has to be something I could so with an everyday item. So I don’t have to go out and buy stuff.

Oh, and it CANNOT be just a fun experiment. I have to be solving a question.
I have to make a report that goes like this:

Question:
Hypothesis:
Independent and Dependent Variables:
Constants:
Materials:
Analiysis:
Conclusion:

Answer: well…my friend and i did an experiment on fertilizers…we had like 6 plants. We used organic and non-organic fertilizers..that way we could tell if the nutrients in the fertilizers had anything to do with how the plants grow. You can grow them form seeds…which i suggest..or buy some plants and record the heights when you first get them! then you have those height to the heights of the plants when their growing period is over! i also suggest u keep at least one plant that does not have fertilizers in it..im not sure what ur looking for..but hey its an idea

Floating Bowling Balls – Cool Science Experiment

Question: What’s an “outline of my research method”?

My criteria sheet for a school project is asking me for a Step by step outline of my research method, method type, type of data used, how it was collected and list of equipment used.

Its a science project… A psychology one. I did an experiment on whether hyperativity is caused by sugar. I had to do research, and now I have to do a full Lab report.

Help?
Also, whats an independant, dependant and controlled variable?
And extraneous variable?

Answer: You would say,
I video taped and observed 40 children playing. After an hour I gave two cups of kool-aid to 20 kids with real sugar. I gave 20 kids kool aid with nutrisweet. I then observed their behavior for 1 hour afterwords. We then counted the number of times they hit each other or called each other names.

..ETC

In your example the independent variable is the sugar. The dependent variable is the children’s behavior or the hyperactivity you are looking for. In this expample you might say the children’s behavior is dependent on whether or not they got sugar. An extraneous variable would be something like it being close to bedtime or lunch. It is possible that there might have been outside factors that caused the hyperactivity.
Independent and dependent variables are important because you help identify the cause and effect relationship between two actions.

Glow-in-the-Dark Paper – Cool Halloween Science

Question: Does anyone have a good science experiment for kindergartners based on recycling?

We are doing a unit on wood and paper, and we recycle mixed paper in the room… Thanks!

Answer: You can make blocks from water and paper. Once they dry they can be used for construction or even for fuel for fireplace/woodstove.

You need a form with a sliding panel to squeeze and press the water out, then you let them dry. I think LL Bean had a log maker a few years back, same principle.

Cellulose insulation is made from 100% recycled newspaper and is the premier insulation in existing homes. Foam is generally used in new construction, not existing homes.

Kindergarten Science Experiments