Grass is a type of plant with long, narrow leaves called blades that grows in lawns, fields, and prairies all over the world. When you walk barefoot across a lawn, those soft green blades tickling your feet are grass.

Grasses are among Earth's most important plants. The grains we eat for breakfast, like wheat, rice, oats, and corn, all come from grass plants. Bamboo, which can grow as tall as a tree, is actually a type of grass. Wild grasses cover vast prairies and savannas where herds of animals graze, eating the nutritious leaves.

The grass in your yard needs regular mowing because it keeps growing after you cut it. Unlike a tree, which grows from its tips, grass grows from the bottom near the soil, so cutting the top doesn't kill it. This trait makes grass perfect for lawns, sports fields, and pastures where cows and horses feed.

The phrase the grass is always greener on the other side means that other people's situations can look better than your own, even when they're not. Someone might think switching schools would solve all their problems, only to discover that every school has challenges. Sometimes the grass really is greener right where you're standing.