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They think this will continue far into the future. T F like this over and over again. It is this process that A T 21st Century Skill L 2 s F A T N P A T More than 10,000 earthquakes occur each year in southern California. Most are so small that people don’t even notice them. California’s many earthquakes are easy to explain. he state sits on top of the San ndreas ault. his is where the acific and orth merican plates meet. he San ndreas ault is about 800 miles (1,287km) long. he total movement along the fault is less than 2 inches (5cm) per year but the tremors caused by the movement can be very strong.

Real World science A Changing Earth Learning & Innovation Skills You need to learn about lots of things, but you also need to learn how to learn. These notes give you hints about how to use what you know in better and more creative ways. indd 1 21 st Centur y Content You study reading, math, science, and social studies. You also need to learn about the world of work and your community. These notes tell you about business and money. They also give you ideas about how you can help yourself, your community, and the world.

He bubbles build up and flow out of the top of the container. he bottle is narrow, which causes the bubbles to squeeze together as they try to escape. his increases the pressure, which pushes the bubbles out of the bottle with more force. hen the bowl is used, the bubbles are not squeezed together and the pressure stays low. he bubbles simply rise up and ooze over the sides of the bowl. he bottle is much like the lava tube of a volcano. O T W A W P T W W T P A Chapter Two age 13 age 14 U age 19 T A s water freezes it expands.

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