Technology that Limits the Impact of Forces on the Earth

Which technique does NOT prevent erosion?

• dams

• seawalls

• seismographs

• contour plowing

Which of the following statements is true about dams and levees?

• A dam is designed to prevent flooding, and a levee changes the direction of the water flow.

• A levee is designed to prevent flooding, but a dam only changes the direction of water flow.

• Both structures are designed to prevent flooding, but dams don't block water flow like levees.

• Both structures are designed to prevent flooding, but levees don't block water flow like a dam.

Which of the following choices is the least effective in preventing soil erosion?

• planting vegetation

• terracing

• putting up fences

• building dams

Choose all techniques below that are used to prevent erosion.

• contour plowing

• radar images

• planting vegetation

• jetties and groins

What question can scientists learn from a seismograph reading?

• How deep is the earthquake?

• How strong is the earthquake on the Richter Scale?

• How far away will the earthquake travel?

• How much damage will the earthquake cause?

Tags

NGSS.MS-ESS2-3

In which way can a satellite be used to help with safety?

• Satellites can better predict weather to warn people of severe storms or hurricanes.

• Satellites keep people from getting lost when they use GPS.

• Satellites can communicate important information to television stations to warn people of a dangerous situation.

• All of the above

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS3-2

The seismograph is most useful for studying earthquakes because...

• it can predict the weather.

• it can prevent an earthquake.

• it can measure the strength of vibrations.

• it can change the intensity of an earthquake.

Coastal erosion is reducing the size of a town's beach. Town leaders want to understand how to use technology to control the erosion. Which question should the leaders ask?

• How do dams trap sand?

• How do groins and jetties trap sand?

• How can storm drains reduce flooding?

• How can GIS (Geographic Information Systems) be used to map floodplains?

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-3

Scientists place several seismographs along a mountain chain. Which question will the scientists MOST LIKELY answer with information they collect from the seismographs?

• Where do faults occur?

• How tall are the mountains?

• How can earthquakes be prevented?

• Which parts of the mountains are formed by volcanic eruptions?

A town is concerned about erosion from future flooding from the Mississippi River. What type of technology should they build to protect against future flooding?

• a levee because it blocks the flow of water and keeps soil from washing away

• a levee because it helps water from overflowing the banks and washing soil away

• They should use terrace farming to reduce water runoff.

• They should use contour plowing to reduce the loss of rich soil.

Tags

NGSS.MS-ESS3-2

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2