Potassium

I learned about Chemistry in Science several weeks ago. And I read that Potassium fizzes and gives off so much heat, it catches fire.
I want to deepen what I had learned about it. Potassium is an Alkali Metal, and is an Element. They can be found in fireworks, the Crust of the Earth, the oceans, fertilizer, bananas, some other plants and fruit. Pottasium can burst, that's why they're used in making fireworks. All Potassium deposits are found in marine deposits.

Potassium can be used for:

1. Our body: it helps to build proteins, build muscle, and control the electrical activity of the heart.

If we have Potassium deficiency, we could have weak muscles, abnormal heart rhythms, and a slight rise in blood pressure. It's called hypokalemia.

If we have too much Potassium in our body, we could have abnormal heart rhythms, or heart issues.

2. Biology: They are vital to plants in photosynthesis process.  Its essential role is for regulating leaf stomata and controlling water use. For animals, they're mostly used in animal foods. It maintains salt balance between cells and body fluids.

The letter K represents Kalium in the Periodic Table.

Kalium is Potassium in Latin, but to make it easier for English speakers, it's changed to Potassium.

3. Fireworks and smoke bombs are made out mostly of Potassium. Smoke bombs can be used to mark a helicopter's landing, playing, making a dramatic scene/photo, etc.