Chattanooga Times Free Press - ChattanoogaNow

Science studies

- Laugh Lines is compiled from various sources, including reader submission­s and websites. Origins are included when known.

These are said to be fifth- and sixth-grade students’ answers on tests.

When scientists broke open molecules, they found they were only stuffed with atoms. But when they broke open the atoms, they found they were stuffed with explosions.

One horsepower is how much energy it takes to drag a horse 500 feet in one second.

Rainbows are just for us to look at but not really understand.

You can listen to the thunder after seeing lightning and tell how close you came.

If people run around and around in circles, we say that they are crazy. When planets do the same thing, we say they are orbiting.

The law of gravity says no fair jumping up without coming back down.

In South America, they have cold summers and hot winters, but somehow they still manage.

There are 26 vitamins in all, but some of the letters haven’t been discovered yet. Finding them all means living forever.

A vibration is a motion that can’t make up its mind which way it wants to go.

Most books now say that the sun is a star. But it still knows how to change back into a sun in the daytime.

Lime is a green-tast- ing rock.

Water freezes at 32 degrees and boils at 212 degrees. There are 1,80 degrees between boiling and freezing because there are 180 degrees between north and south.

There’s a tremendous weight which is pushing down on the center of the Earth because of so much population stomping around up there these days.

Some people are able to tell what time it is by looking at the sun. But I have never been able to make out the numbers.

To most people, a solution means Lisa Denton

finding the answers. But to chemists, a solution is when things are still all mixed up.

Genetics explain why you look like your father and, if you don’t, why you should.

Many dead animals in the past changed to fossils, while others preferred to be oil.

Some oxygen molecules help fires burn, while others help make water, so sometimes it’s brother against brother.

Vacuums are nothings. We only mention them to let them know we know they’re there.

Water vapor gets together in a cloud. When it is big enough to be called a drop, it does.

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