Overview of Scuba Diving

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# Overview of Scuba Diving - PowerPoint PPT Presentation

Overview of Scuba Diving . Introduction. The members of Blue Group Lily, James, Malik , and Makena present to you a power point about a Chapter 1 Overview of Scuba Diving. Well what’s in Chapter 1 again? Well in Chapter 1 for example is Buoyancy, Air Pressure, Equalizing, and more!.

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Presentation Transcript

### OverviewofScuba Diving

Introduction

The members of Blue Group Lily, James, Malik, and Makena present to you a power point about a Chapter 1 Overview of Scuba Diving.

Well what’s in Chapter 1 again?

Well in Chapter 1 for example is Buoyancy, Air Pressure, Equalizing, and more!

Buoyancy

If an objects floats, we call it positively buoyant; if it sinks, we call it negatively buoyant ; and if it neither floats nor sinks , we call it neutrally buoyant.

Positive

Neutral

Negative

Air PressureSame air, Smaller space

If you take an air volume underwater with you in a flexible container or an an inverted jar, the volume changes proportionately with pressure.

Sinus Areas

Do not Dive with congestion or sickness!

The Ease to Breathe
• Using a snorkel saves air in your tank when your on the surface.

Inflation Hose

Low Pressure Inflation

No O-ring, No Diving
• With no O-ring on a Scuba tank your regulator will not seal.
Pointing out the Regulator

First Stage

Alternate Air Source

2nd Stage

Pressure Gauge

Scuba Pressure Gauge
• A pressure gauge (or can be known as SPG or “contents gauge”) tells you how much air you have during a dive.
• When your pressure gauge is in the red zone be sure to inform your instructor that you are low on air.

### Thank You

A verrryyyyHappyy!!!!