It’s Fourth of July week, so let’s dig into some trivia around this sparkling holiday! Whether you will be out in our wonderful wilderness, at a downtown parade with streamers on your bicycle, or having a picnic under a professional fireworks display — have a great time.
The Fourth of July gets me thinking about fireworks and fireworks make me think of chemistry. Did you know the different colors in fireworks explosions are caused by different elements? Check out your periodic table to find the elements and create your own paint-by-the-elements for fireworks. Lithium and strontium = red; sodium = yellow; barium = green; copper = blue.
Question 1: In what year did the United States gain its independence?
Question 2: What caused some states to restrict the sales of fireworks?
Question 3: Where do historians think fireworks were first used?
Question 4: What are the 3 components of “black powder,” the explosive force behind pyrotechnics?
Watching the Fireworks with Clifford
Fireworks through Time Warp: Liquid Nitrogen
Thousands of people, mainly children, are injured every year due to fireworks. Sparklers burn at about 1,200° F, and are a common cause of burns when fireworks are involved. Outlined by the National Council on Fireworks Safety (NCFS), the following is a list of safety tips to consider when handling fireworks:
• Parents and caretakers should always closely supervise teens if they are using fireworks.
• Fireworks should only be used outdoors.
• Always have water ready if you are shooting fireworks.
• Know your fireworks. Read the caution label before igniting.
• Wear safety glasses whenever using fireworks.
• Never relight a “dud” firework. Wait 20 minutes and then soak it in a bucket of water.