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A light beach ball floats on the water. A heavy rock sinks in the mud. Matter is all around us. But what makes a beach ball different from a rock? And what properties do we use to compare… Read More →

Fireworks crackle and boom in the sky. Your friend laughs at a joke. Sounds are all around you. But what exactly is sound? And how does sound reach your ears? Read this book to find out! Read More →

A pot of water boils over a hot burner on the stove. Sunshine warms your skin on a breezy day. Heat is warming things all around you. But what exactly is heat? And how do things become warmer Read More →

A ball drops to the ground. Leaves fall from a tree. Gravity is at work all around you. But what exactly is gravity? And how does it affect different objects? Read this book to find out!… Read More →

Lightning streaks across the sky. A lamp lights up a room. Electricity is all around you. But where does electricity come from? And how do we bring it into our homes? Read this book to find… Read More →

Ice cubes clink in a glass. Steam rises from a pot of boiling water. Solids, liquids, and gases are all around you. But what exactly are solids, liquids, and gases? And how do you tell them… Read More →

Light shines through your kitchen window. A campfire brightens the dark woods. You see light all around you. But where does most light come from? And how does it travel? Read this book to… Read More →

A colorful magnet holds a drawing to a fridge. Paperclips stick to a magnet. Magnetic forces are at work all around you. But what exactly is a magnet? And how do magnets work? Read More →

You push a swing. Your brother pulls a wagon. Forces are at work all around you. But what exactly is a force? And how do forces act on different objects? Read this book to find out! Learn all Read More →

An airplane soars through the sky. A wind gust blows through the leaves. Objects are in motion all around you. But what makes objects move? And what are some different ways that objects move? Read More →

A rock sinks in the water. A hot air balloon floats in the air. Many objects float and sink. But what makes them move this way? And how do people use floating and sinking in their lives? Read Read More →