Joining water and fall spells waterfall, a place where water tumbles down off a cliff. The new word paints a picture of exactly what you would see.

A windmill is a tall machine with blades that the wind spins to grind grain or make power. Joining wind and mill names the very thing it does.

A doorbell is a little bell sitting next to a door that rings when a visitor presses it. The word door and the word bell are the two parts that form the whole compound word.

Adding jelly and fish together spells jellyfish, a sea creature with a soft, jelly-like body. The smaller words tell you what this strange fish feels like.

Scarecrow starts with the word scare because its job is to scare crows away from farm fields. The second half of the word is crow, naming the bird it frightens.

A notebook is a book where you jot down notes, so the second smaller word inside it is book. Together, note and book name exactly what you write in for school.

Join pine with cone and you get pinecone, the brown cone-shaped seed case that falls from pine trees. Both small words show the type of tree and the shape at once.

A beehive is the hive where a colony of bees lives and makes honey. The word takes bee and hive and joins them, giving you both parts of the compound word.

Putting earth and worm together gives earthworm, the long wiggly worm that burrows through dirt. The name tells you both the animal and where it lives.

Each first word only works with its matching partner to make a real compound word: water plus fall spells waterfall, wind plus mill spells windmill, door plus bell spells doorbell, and jelly plus fish spells jellyfish.