3&4

Question 1

What happens to sediments carried by a river when they reach a lake

Answer 1

They spread out evenly on the lake bottom

Question 2

What are four conditions that would allow older sedimentary rocks to be on top of younger sedimentary rocks

Answer 2

Faulting
igneous intrusions
Erosion
Folding

Question 3

What causes folding

Answer 3

Compression - pushing them together

Question 4

What forces cause faulting

Answer 4

Compression and tension

Question 5

What would a layer of sedimentary rock with a fossils tell you about where it was formed

Answer 5

It was formed on the bottom of an ocean of lake

Question 6

Which rock layer in a canyon, like the Grand Canyon, will usually have the oldest fossil? Why?

Answer 6

Layers located deep in the canyon because they are formed the longest time ago

Question 7

What assumption do scientist make when using radioactivity dating technology

Answer 7

radioactivity element decay the same rate today as they decayed in the past

Question 8

Describe a location that would be good for a bone or shall to become a fossil

Answer 8

Submerged in shallow water or mud

Question 9

How does the fossil record tell you about the past of an area

Answer 9

It gives evidence of the climate, plants and animals that lived there.

Question 10

What has to happen for sediment to become a rock

Answer 10

Minerals have to cement them together

Question 11

In land-locked lowa coral was found in a geologic layer .what does that tell you about the geological history of this area

Answer 11

It was once a warm shallow ocean

Question 12

What evidence do scientists have that support the idea that earths surface has changed over time

Answer 12

Fossils of rain forest plants that are deserts today

Question 13

If a Santos had collected a bunch of fossils and wanted to know how old they were, what would they need

Answer 13

A chart showing to each and position of the Rock layers and the fossils found in them

Question 14

Why do more recently deposited Rock layers contain fossils more like animals that are alive today

Answer 14

They died in more recently and are in newer rock layers.those animals haven’t had long enough to evolve

Question 15

What is the source of energy for earthquakes volcanoes

Answer 15

heat from earths interior

Question 16

if a volcano is going to erupt, what can scientist do to stop it

Answer 16

Nothing, a volcano starts from deep in the ground

Question 17

Describe how a volcano transfers energy

Answer 17

heat and mechanical energy are transferred as magma flows from a volcano

Question 18

What type of energy transfers causes an earthquake

Answer 18

Mechanical energy from fault that creates seismic waves

Question 19

How does the energy released by volcano and earthquake affect people that are near them

Answer 19

It can hurt people and damage property

Question 20

list at Least two ways that you could model an earthquake

Answer 20

A.and popsicle stick in till the break/stretch of rubber band until it snaps

B. Drop a rock into a pan of water and watch the waves travel outward

Question 21

What must be added to three blocks for you to use them as a model oven earthquake

Answer 21

Energy by pushing them together , pulling them apart or sliding them side to side

Question 22

Which of the blocks would have moved after you demonstrated an earthquake

Answer 22

The center block

Question 23

Why was the information about the danger of faultlines overlooked

Answer 23

People overlook information they do not like or will cost them money

Question 24

What would a geologist have recommended to the house owners before the house was built

Answer 24

Don’t build it there – it is too dangerous

Question 25

I knew Eric is being developed for homes what research should the city planning department considers so that their homes are safe

Answer 25

Scientific research that shows if geological hazards exist

Question 26

How fast or slow would it take a mountain rage erode into a flat plane

Answer 26

Millions of years a little at a time

Question 27

If the mountain rage was raising a 1 cm every 10 years how much would it rise in 1000 years

Answer 27

100 cm

Question 28

Give an example of how the earth surface can change quickly

Answer 28

Floods, tsunami ,volcanic eruptions

Question 29

Give an example of how the earths surface can change slowly

Answer 29

Mountains forming ,canyon forming

Question 30

Just because you don’t see a mounting change in your lifetime, does that mean the mountain has not or will never change

Answer 30

Landforms change very slowly over a long period of time