Our teacher would do a simple demonstration every year with a small piece of sodium and water. The plan was to have the small piece of sodium fizz around in the bell jar of water. He kept pulling off pieces of sodium that were too small, and they just went “pfft”. After the 5th failed attempt, he was mad and pulled off a large chunk, and he tossed it in the water. It didn’t dance around, it went <BOOM>, big <BOOM>, two feet from the students in the front row. I was 12 feet away and got wet and was hit with glass. He barely kept his job. It was awesome!
Our teacher would do a simple demonstration every year with a small piece of sodium and water. The plan was to have the small piece of sodium fizz around in the bell jar of water. He kept pulling off pieces of sodium that were too small, and they just went “pfft”. After the 5th failed attempt, he was mad and pulled off a large chunk, and he tossed it in the water. It didn’t dance around, it went <BOOM>, big <BOOM>, two feet from the students in the front row. I was 12 feet away and got wet and was hit with glass. He barely kept his job. It was awesome!