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Computers are often used to put lists into some sort of order—for example, names into alphabetical order, appointments or e-mail by date, or items in numerical order.

In this outdoor mapping activity, learners explore where plants grow and map plant-distribution patterns.

Even fast computers are limited to how quickly they can solve problems. One way to speed things up is to use several computers at once.

In this activity (on page 1 of the PDF under SciGirls Activity: Earthquakes), learners will use a magnifier to carefully examine samples of sand from different locations.