Lesson 4.11 Magnetic Stripes and Sea Floor Spreading

Last updated 10 months ago

11 questions

Before you watch the video, pick up a box of iron filings and some magnets.
Please DO NOT put the magnets in the box!
1. open the box so you can see the filings inside
2. Will holding the box, move the magnets beneath the box. 

Required

Describe what happens to the iron filings as you move the magnets underneath the box.

Required

How do the magnets and the filings replicate what happens when a liquid containing iron is exposed to the magnetic field of the earth?

Trim End | 06:26

Question 3 | 00:37

Question 4 | 00:48

Question 5 | 01:38

Question 6 | 01:52

Question 7 | 02:25

Question 8 | 02:52

Question 9 | 03:43

Question 10 | 04:41

Question 11 | 05:11

00:00/00:00

Question 3

00:37

Question 4

00:48

Question 5

01:38

Question 6

01:52

Question 7

02:25

Question 8

02:52

Question 9

03:43

Question 10

04:41

Question 11

05:11

Lesson 4.11 Magnetic Stripes and Sea Floor Spreading

Lesson 4.11 Magnetic Stripes and Sea Floor Spreading

Describe what happens to the iron filings as you move the magnets underneath the box.

How do the magnets and the filings replicate what happens when a liquid containing iron is exposed to the magnetic field of the earth?

How do the magnets and the filings replicate what happens when a liquid containing iron is exposed to the magnetic field of the earth?

What type of crust underlies the ocean?

What aspect of the oceanic crust did scientists begin to study in the 1950s?

What did sailors in the late 18th century attribute magnetic disturbances near Iceland to?

Why was magnetometer technology first developed?

What unexpected pattern did scientists observe during the first magnetic surveys of the ocean floor?

What causes the Earth's magnetic field to produce stripes on the ocean floor?

Where are the youngest rocks in the Atlantic Ocean located?

How do magnetic stripes form on the seabed over time?

What theory is closely related to the discovery of magnetic striping?

What type of crust underlies the ocean?

What aspect of the oceanic crust did scientists begin to study in the 1950s?

What did sailors in the late 18th century attribute magnetic disturbances near Iceland to?

Why was magnetometer technology first developed?

What unexpected pattern did scientists observe during the first magnetic surveys of the ocean floor?

What causes the Earth's magnetic field to produce stripes on the ocean floor?

Where are the youngest rocks in the Atlantic Ocean located?

How do magnetic stripes form on the seabed over time?

What theory is closely related to the discovery of magnetic striping?