Valid Conclusion A conclusion that answers the original question.

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.

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.

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.

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

He that hath a trade, hath an estate.

The Open Skies issue is something that's ongoing and we understand that there are issues in Australia that need to be sorted out. It's something that I think over time there's an opportunity for us and we'll work on that in a progressive way.

Never forget what you are, for surely the world will not. Make it your strength. Then it can never be your weakness.

Humor is a part of spirituality.

The only work I did for the next five years after splitting from Vincent was work I'd already lined up.

The easier things are to buy, the more we consume.

What ends up in your scrapbook? The pictures where you look like a good guy and a good family man, and the children look adorable - and they're screaming the next minute. I've never seen a family album of screaming people.

From slavery to segregation, we remember that America did not always live up to its ideals. In fact, we often fell far short of them. But we also learned that fundamental to our national character is the drive to live out the true meaning of our creed.

If you are talented, you can really do anything. And if your heart is at the right place and you have the passion for it, you can go for it and do it.

I love being married. Its so great to find one special person you want to annoy for the rest of your life.

I don't understand people who want to leave a good job. To me, without being terribly judgmental, those are people who haven't gone through their stint of being out of work for long periods of time.

You know, 'Top Gun' was the movie I saw in high school that made me want to be a filmmaker. I remember very specifically coming out of the Century 21 Theater in Colorado from seeing it, and my friend saying, 'What did you think of the movie?' And I said, 'I think I know what I want to do for a living.' That's a true story.

It's so important to keep moving and don't buy into the myth. I say do anything you feel like as long as you don't hurt yourself or hurt anyone else. And things don't stop working in your body or your mind.

Our relationship was cursed by the fact that we agreed on everything.

I used to go in for Disney auditions, and they'd tell me, 'You're cute and nice but just not funny.'

The more you learn about animals and animal rights - it's an intriguing, fascinating world.

We had a big party that night and everybody went around gathering results from various precincts and each person would get four or five precincts and then come to the house. There were no cell phones or anything to get results phoned in early.

We can't control it, and we've basically quit trying. People are going to talk, and people are going to lie.

With the Internet and social media being a huge part of today's culture, I think it's super important to promote staying smart online.

The slaves of socialism are slaves, but they are no one's property and therefore no one's loss.

Speak softly and carry a big stick

What's odd is that nobody in my family is an artist. My cousins are, like, secretaries at law firms or nurses or just more blue collar. And I was in a baseball team. I used to be, like, a really big tomboy.

Half a loaf is better than no bread.

When I think about privacy on social media sites, there's kind of the usual suspect problems, which doesn't make them any less important or severe; it's just we kind of know their shape, and we kind of know how we're going to solve them.