Definition: Physical matter; material.

Alright class, settle down now, let’s take a look and see, At the word "substances," it’s quite key! The dictionary tells us, clear and bright, "Physical matter; material” – that's right! Let's break it down with a little rhyme, you see, A “substance” is anything you can be - Like water flowing, or a tree so tall, Or even sand upon the beach’s call. It’s everything around us, solid and true, From rocks and dirt to me and you! Think of it this way – a brick, a stone, A juicy apple, sweetly known. They're all substances, tangible and real, Things we can touch and truly feel. So "substances" means anything that’s made of stuff, That has weight and form, enough is enough! Do you have any questions? Let's discuss with glee, Now who can tell me a substance they see?