First Grade
Worksheets
The Excretory System
Good morning everyone. I am your guide today. We will be taking a tour of the excretory system. We will learn why it is so important to your body. We will find out how it works. We will get to visit the major parts of the excretory system, too.
Did you know that your excretory system is very slow? Well, it may not be that slow. Compared to a bird's excretory system, yours is slow. A bird eats its food and can excrete the waste from the meal in about 45 minutes. It takes your body hours to digest the food. It is an even longer time before you can get rid of the waste.
Your excretory system has a job to do. Your body has a way to remove solid waste from your body. The excretory system works to get rid of fluids. Urine is the result of the work of the excretory system.
