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Capillary Filter

One of the interesting things at St. Augustine, Florida's Oldest House is a large stone bowl with a bucket underneath. The stone bowl is half full of muddy water and there is a slow, steady drip of water from the bottom of the bowl to the bucket. Although the water in the bowl is a bit muddy, the water in the bucket is clear. Why?

Bread Bubbles

This experiment is about bread. If you have used my website for long, you know that I like experiments with food, especially when it is tasty food. We regularly bake bread, and there are few smells that are better than the smell of freshly baked bread.

What is a Higgs boson, and why should I care?

The Higgs boson is one of the particles that have been predicted, but has only recently been detected. It was predicted by several physicists, including theoretical physicist Peter Higgs. That is where the first part of the name came from.

OK, so what is a boson? That huge number of elementary particles is divided into two major groups: fermions and bosons. Fermions are sometimes called matter particles because they are the particles that take up space. Two fermions cannot be in the same spot at the same time.

Big Numbers

This time we will take a look at some big numbers. In the study of science, you will run into all sorts of very large numbers, and it can get to be overwhelming.

A Compass at the South Pole

This experiment comes from a question sent to me by a subscriber. His question was, "If I were standing directly on the South Pole and I was holding a compass, where would the needle be pointing?"

Lets do this scientifically. Before you read on or try the experiment, think about it. Think about what you know about magnets. Think about how a compass works. Once you have come up with an idea of what you think would happen, then you will be ready to try this.

75% Water

When you read that 75% of the Earth's surface is covered by water, what does it really mean? The answer goes far beyond just a simple fact. As with many topics in science, the deeper you go, the more you find.

A Model of the Water Cycle

The Water Cycle is one of the major topics students are expected to understand in science. This is because water is such an important resource for food production, industry, and daily life. To help understand how the water cycle works, lets make a working model, using some common, household items.

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