1.What happened to the pile of books when you pulled a book at the bottom?
2. What happened to the small community on top of the books after
the "earthquake"?
3. What changes occur on the surface of the earth during an
earthquake as seen in this activity?
2. What happened to the small community on top of the books after
the "earthquake"?
3. What changes occur on the surface of the earth during an
earthquake as seen in this activity?
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Answer:
1.Pull the lower thread with a force that increases slowly until one of the threads breaks. Try again with a short sharp pull.
2.Aftershocks, landslides and other earth movement can cause items to shift, fires to start, tsunamis to form, and more. Even a minor earthquake can cause pipes to snap and objects inside your home to shift. Find current information after an earthquake from the USGS Hazard Program.
3.The energy radiates outward from the fault in all directions in the form of seismic waves like ripples on a pond. The seismic waves shake the earth as they move through it, and when the waves reach the earth's surface, they shake the ground and anything on it, like our houses and us!