Control Group A group in a study that is treated in exactly the same way as the experimental group, apart from the factor you're investigating.

Model A simplified picture of what's physically going on.

Prediction/Hypothesis A specific testable statement, based on a theory, about what will happen in a test situation.

Peer Review Where a scientific report is sent out to peers (other scientists) who examine the data and results, and if they think that the conclusion is reasonable it's published.

Variable A quantity that has the potential to change, e.g. weight, temperature, concentration.

Prediction/Hypothesis A specific testable statement, based on a theory, about what will happen in a test situation

Precise Result A result that is really close to the mean.

Random Error A difference in measurement caused by an unpredictable factor, e.g. human error.

Repeatable Result A Result that can be repeated by the same person using the same method and equipment.

Reproducible Result A result that can be consistently reproduced in an independent experiment.

Valid Conclusion A conclusion that answers the original question.

Accurate Result A result that is really close to the true answer.

Variable A quantity that has the potential to change, e.g. weight, temperature, concentration.

Independent Variable The variable you change in an experiment.

Dependent Variable The variable you measure in an experiment.

Placebo A dummy pill or injection that looks exactly like the real drug, but doesn't contain the drug.

Sample size The number of samples in the investigation, e.g. the number of people in a drug trial

I only hear my own voice. When you start hearing other voices, then it's time to worry.

Few American presidents have been unhappier or lonelier in office than Woodrow Wilson.

I won't use abortion as a litmus test with a pro-choice individual. Someone that is an activist on the abortion issue, I think, goes outside the pale, and I cannot support an activist on the abortion issue.

I didn't grow up reading the Bible.

Politics also means educating people. It's important to speak openly with our fellow Greeks, to tell them what our problems are and that we have to change something.

I'm not trying to become a pop artist, and I'm not trying to make sure I stay a country artist. I'm just trying to make sure I make the best music I can, according to my way.

Even though it seems like there are a lot of parts, there is really tons of downtime in the acting world.

There are certain historical figures of such importance that we need to know everything about them, which is why books about Napoleon, Lincoln, Julius Caesar, Joan of Arc, Queen Elizabeth I, and the great religious founders continue to proliferate; these lives require constant reevaluation and interpretation.

When someone dies instantly, then I think the well of grief and disbelief all mixed in with it is unfathomable. And when murder is involved, that just takes it into a whole new place. There is an extra dimension you just can't compute or deal with.

I could have been a dancer. I just never got my shot at it.

By the time I was a teenager, when I went outside the house, it was about hip-hop all the time. Nothing but hip-hop, block parties.

What the fashion system says and what the fashion customer says are really two different things.

The best way to leave a legacy is to believe, teach, defend, and promote what is true.

Essentially, every technology you have ever heard of, where electrons move from here to there, has the potential to be revolutionized by the availability of molecular wires made up of carbon. Organic chemists will start building devices. Molecular electronics could become reality.

I've always idolized Diana Ross's hair. Why not have fun, big curls? You see the same sleek waves everywhere.

Paranoid is what people who are trying to take advantage call you in an effort to get you to drop your guard.

The Legislature of Lower Canada, consisting chiefly of Roman Catholics, could hardly be expected to support a church which they were taught to consider heretical, and in Upper Canada the scanty means at the disposal of the Government, precluded all hope.

Long Beach is the best. I tell everyone that.

I don't think there's any way we can save the polar bears.

Ever since I was young, if somebody needs help, you help them out.

Your omnipresence is marvellous I breathe and you enter me. I exhale and enter into you.

Our tradition of political thought had its definite beginning in the teachings of Plato and Aristotle. I believe it came to a no less definite end in the theories of Karl Marx.

Anyone who stops learning is old whether at twenty or eighty. Anyone who keeps learning stays young.

Man maintains his balance, poise, and sense of security only as he is moving forward.