The Ocean Deep or What is

1
The Ocean Deep or What is Inner Space?
2
Warm Up

• What do you think each piece of equipment is used
  for?

3
Question?

• How difficult is it to see underwater without a
  facemask?
• Try to see if you can tell how much change is at
  the bottom of the tank without a face mask.
• Put on a face mask and try again, is it easier?
  Why?

4
History of Diving

• 4500 years ago the ancient Greeks, using newly
  developed glass, made facemasks and used them to
  dive for ornamental shells.

5
Diving Chamber

• The diving chamber was a huge barrel that
  contained a limited supply of air!
• It was attached to a ship, limited movement.

6
Diving Suit

• The Diving Suit (1873)was made of watertight
  canvas and had a heavy metal helmet. Air was
  pumped from the surface through a tube into the
  helmet.
• Limited movement, still attached to the ship.

7
SCUBA

• SCUBA- self contained underwater breathing
  apparatus was developed by Jacques Cousteau and
  his partner Emil Gagnan in 1942. It allowed for
  greater movement and freedom underwater.

8
Jacques Cousteau
9
Summary

• Advances in technology, especially in the past
  150 years, have given people the ability to
  explore the ocean
• at greater depths
• for longer periods of time
• with more safety and mobility

10
Class WorkMarine Science Text

• Skim/Read pages 4-20.
• Create a timeline of events in ocean exploration.
  (Ask for help as needed)
• ?--------------BC/AC----------------?
• Read pages 14-20.
• Answer section review questions 1-3 on page 20.