MOTIVATION Look at the following diving equipment Wet suit Dry suit Flippers Face mask Scuba tank Snorkel HOW IS EACH PIECE OF EQUIPMENT USED IN MARINE SCIENCE?

DIVING EQUIPMENT The greeks made crude face masks to dive for ornamental shells and food. This was the earliest known instance of underwater or inner space exploration Face mask-vision Dry suit-stay warm and dry Wetsuit-traps layer of water which warms to body temperature Snorkel-breathe Flippers-movement Scuba-breathe GUESS THE AIM???????

AIM: How can we describe the history of inner space exploration? INSTRUCTIONAL OBJECTIVES Describe how early divers explored underwater Explain, briefly, how scuba gear works. Identify a few pioneers of underwater exploration

HOW DID DIVING TECHNOLOGY EVOLVE OVER THE YEARS. 1 HOW DID DIVING TECHNOLOGY EVOLVE OVER THE YEARS? 1. FACE MASK FOR CLEAR VISION

2. Diving Chamber Sir Edmund Halley

DIVING CHAMBER A barrel with a limited air supply Diver strapped within barrel with limited vision

DIVING CHAMBER VS FACE MASK ADVANTAGES DISADVANTAGES

3. JIM SUIT/DIVING SUIT - full canvas suit - hard hat or helmet connected to air supply -dry inside suit and connected to boat by tether

JIM SUIT VS DIVING CHAMBER PROS CONS

4. Aqua lung or SCUBA

SCUBA or aqua lung 1943 Emile Gagnon and Jacques Cousteau invented a compressed tank of air strapped to a divers back Allowed divers time and flexibility underwater Uses regulator and mouthpiece to control air flow Tell SCUBA story Tell about GENE RITTER JDHS alumni

SCUBA VS JIM SUIT PROS CONS

SCUBA is an acronym for self contained underwater breathing apparatus

SUMMARY Advances in diving technology over the last 150 years have given people the ability to explore the oceans at greater depths, for longer periods of time, with more safety and mobility.

EXIT TICKET 1. Describe differences between SCUBA and JIM suit? 2. Describe Differences between diving chamber and face mask?