Science Experiments

Factors that are kept the same in an experiment are called constants.

the variable is allowed to change, the control must stay the same. If you are testing whether a bird whistles best in hot or cold temperatures, the type of bird should be the control.

actually wanting to do a science fair experiment?

heterogenous mixtures

It depends.

Obviously, first of all, you'll need a level of expertise on the subject. Ie, you should know what you are doing. You could be either degree educated or self taught.

Assuming you have the ability to conduct an experiment, then you should check if you need a special permit for the experiment in question. If a license isn't required, then you can go ahead and do your experiment.

The only point where an amateur scientist would struggle is in cases where the licensing laws apply. Anything that involves animals, humans, medicine, chemistry, radio technology, etc would require a special permit. In such cases being employed in a lab as a scientist would help.

well if your good at building and/or you like helping the environment and plants than build a green house and record how your plants are doing every 3 or 4 days! it is a lot of fun and your helping the environment. or even design a playground!

'Known' Variables

contrast

Yes. That's the whole point of experiments. If you reckon something will happen, but it doesn't then you have to change your hypothesis. Or your experimental method. Which is why scientists self regulate by publishing claims that other scientists then try to recreate or disprove. Or even just criticise your methods.

If your data doesn't support your hypothesis, but you doggedly stick to it anyway, you've created religion.

observation

Having a good hypothesis, having statistics to work with, thinking about anamolous results, repeating experiments etc

because you can focus more on the only variable you need in an expirement and get the results accuratly

introduction (or research)

you can give or should give detailed background information!

Chemical Energy

The independent variable is also called an experimental variable. It is the variable being manipulated in the experiment in order to show the effect on the dependent variable. The dependent variable is also called the response variable. It is the variable being observed in the experiment. A change in the independent variable is what causes the change (if any) in the dependent variable, which is the purpose of the experiment.

I cant answer this question cause its not a real question . but their is a bunch of questions in anwers.com waiting for you to answer them.

1.Most solar energy doesn't take any power to run and produces no pollutants.
2.Solar energy (sunlight) is free and virtually unlimited.

A hypothesis for a science fair project is a scientific guess for what will happen after you perform your experiment and why. an example is if you are testing how long you buzz on a certain type of Monster, you would say, "I think this type of Monster energy drink will last the longest because it has the highest amount of ginseng," or something.

it's debend on the hypothesis.

They are both ingredients being used in an experiment.

Find two shirts that are the same design and brand from two different stores and see which one would be a better and smarter buy.

the answer is a conclusion

i think you should record the results.

You should ask yourself if the data supported your hypothesis