If you think of three as three dots, you can show it as a triangle. A triangle is a shape with three sides and three angles, or corners. That’s how the ancient Greeks thought of three. The Greeks…
The earth looks like a big, blue marble to astronauts flying in outer space. It’s easy for them to see the round shape of the earth because the astronauts are so far away. But how can you see the…
Rattling trucks, roaring jets, squeaking chalk, and creaking doors don’t make music. They make sounds we don’t want to hear. These unwanted sounds are called noise. Noise is hard to stop. Like other…
Recent Comments