Excretion

Excretion is something your body does to get rid of waste substances that you don't need anymore. Just like when you take out the trash, your body has its own rubbish that needs to be removed.

When you eat food, your body uses what it needs to grow, work and play. But, it can't use everything from the food you eat. There are waste substances produced as your body breaks down food and these waste substances include things like carbon dioxide, water and nitrogen-containing compounds.

Your body gets rid of these waste substances in different ways. You breathe out carbon dioxide, drink and urinate water, and get rid of other waste substances through your skin and intestines.

The kidney is one of the most important organs responsible for excretion. It filters your blood and removes waste products and extra water as urine. The urine is stored in the bladder until it is released from the body when you go to the toilet.

So, excretion is like a clean-up process that keeps your body running smoothly and allows it to get rid of things it doesn't need anymore. It's important to remember to drink plenty of water and eat a healthy diet to help your body get rid of waste substances.