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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.
There are only two more days before we head for New Zealand. I am looking forward to the farm, the beach, seeing friends, and the food. It will be a LONG flight, but I am even looking forward to that. Most of my packing is done, and I am down to the "what did I forget" stage.
Now that we know the proper shape and location for a rain gauge, lets take a look at what they can tell us, and why they are important.
Lets start by imagining that you put a rain gauge in your yard. After a rain, you find that there is one inch of rain in your rain gauge. We can use that to calculate how much rain fell on your yard.
In the scientific process, we should not rely on the results of a single test. Instead, we should perform the test over and over. Why? If it works once, shouldn't it work the same way every time? Yes, it should, so if we repeat the experiment and get a different result, then we know that there is something about the test that we are not considering.