Strontium

Imagine a metal that's soft, like playdough, and shines like a new coin! That's strontium! It's a bit like calcium, which is in milk and bones, but strontium has its own special tricks. It loves to mix with other things, especially oxygen, which makes it a bit grumpy and causes it to get a dark coating when left out. It's found in special rocks, like a hidden treasure waiting to be discovered!

Strontium wasn't always known. It was found a long, long time ago, in 1790, near a village in Scotland called Strontian. That's how it got its name! Scientists noticed a special rock that made flames turn a beautiful, bright red. It took another year to figure out it was a whole new element! Later, scientists learned how to get the pure metal out, and it started being used in cool ways.

One of strontium's coolest powers is making colors! When it's heated up, it glows a brilliant crimson red. This is why it's used in fireworks to make them explode with dazzling red streaks! It was also super important for old televisions. The glass screens of those TVs used strontium to stop X-rays from escaping, keeping everyone safe while they watched their favorite cartoons.

You might not see pure strontium every day, but you can see its effects! That bright red in fireworks? That's strontium!

And those old TV screens? Strontium was there too, making them safe. While most strontium we find is safe, there's a special kind called strontium-90 that's radioactive, like a glowing rock that needs to be handled very carefully.

But don't worry, the strontium in fireworks and old TVs is perfectly safe!