Fireworks

Sarah, Austin, and JC...

Parts of a Firework

Fuse, String Loop, Shell Casing, Stars, Burst Charge, Time Fuse, Lift Charge...

How Chemical Reactions Act

It works when the products make a new substance, and that makes a chemical reaction.

Elements and Compounds Make Certain Colors

Lithium is a metal used to make red.

Sodium compounds make gold and yellow.

Barium is a metal used to make green.

Iron flakes glow red and orange when hot.

The history of fireworks

Chinese used black powder 1,000 years ago.

4,000 people died yearly in 4th of July celebrations.

Until ads for fireworks specifically targeted children.

The bicentennial celebration in 1776 marked the expansion of the popularity of fireworks.

Fireworks were used against Mongol invaders in 1279.

How Designs and Sounds Made

Designs and sounds are made by mixing compounds, stars, and products together to make whatever shape or sound you want.

Safety Tips For Using Fireworks

They use computer so they don't have to light the fireworks manually.

You need to leave fireworks to professionals.

You need to be extra careful.

Take reasonable precautions.

Be prepared for injuries.

Sources

http://science.howstuffworks.com/innovation/fireworks.com.htm

http://www.pbs.org/wgbh/nova/kaboom

http://www.glencoe.com/sec/science/webquest/content/fireworks.shtml