Forces In Earth Crust

Question 1

Tension

Answer 1

Tension is stress that pulls and streches rocks . Tension makes rockes thinner in the middle .

Question 2

Compresion

Answer 2

Compression is stress that squesses rocks . Compresson makes makes rocks fold or break .

Question 3

Shearing

Answer 3

Shearing is stress that pusshes rocks in oppsite directions . Shearing makes rocks break,slip apart,or change shape.

Question 4

Normal fault

Answer 4

Normal fault happens when tension pulls rocks apart. In a normal fault the hanging wall slips down and becomes lower than the foot-wall.

Question 5

Hanging wall

Answer 5

The fault line is slanted ,so the block of rock on one side lf the fault is ablve the block of rock on the other side of the wall. The rock above is called the hanging wall.

Question 6

Foot wall

Answer 6

The fault line is slanted ,so the block of rock on one side lf the fault is ablve the block of rock on the other side of the wall. The rock above is called the hanging wall. The bottom rock is called the foot-wall.

Question 7

Reverse fault

Answer 7

Reverse fault happens when commperson pushes rocks together.

Question 8

Strike-slip fault

Answer 8

Strike-slip happens when shearing pushes rocks in opostite directions.

Question 9

Anticline

Answer 9

A fold of the rock that slopes down on both sides.

Question 10

Synline

Answer 10

A fold in rocks layers that slopes up of a common low point.

Question 11

Plateu

Answer 11

A platue is a flat land or a high plane.

Question 12

Stress

Answer 12

When earth plates move , rocks are pushed and pulled. This push and pull is called stress