ocr: What 1S an explosion? Ifyou've ever enjoyed a firework display or watched a wrecking crew blast an old building, you've seen explosions in action. - L AMNA à - I - Before and after an explosion Although explosions can be made in many different ways, they all have one thing in common. They generate al huge, sudden air movement, known as a shock wave, that can damage the surrounding area. When something explodes, it creates a large volume of gas that expands very quickly. The gases move outward faster than sound can travel, creating the shock wave. As the gases continue expanding into the air ar ...
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