Showing results for "J" in Physics

A rubber duck floats in the tub. A rock sinks to the bottom of a lake. Why do some objects float and others sink? Find out in this series about materials and their properties.

A pencil is stiff. A rubber band is bendable. Why are some objects stiff and others bendable? Find out in this series about materials and their properties. Informative, at-level text helps listeners understand the differences between stiff and bendable objects.

A piece of silk is smooth. Tree bark is rough. Why are some objects smooth and others rough? Find out in this series about materials and their properties. Informative, at-level text helps listeners understand the differences between smooth and rough objects.

A nail is hard. A cotton ball is soft. Why are some objects hard and others soft? Find out in this series about materials and their properties. Informative, at-level text helps listeners understand the differences between hard and soft materials.

Behind every long stride, high-flying pole vault, and perfectly controlled discus throw, science is at work. As a high jumper takes off, potential energy is converted into kinetic energy. A discus thrower builds up momentum while spinning. Find out how science is involved in Olympic track and field events and how athletes take science into account in their quest for the gold medal.

Did you know there are gases all around us, but they're invisible? There are gases in the air that we breathe! With age-appropriate critical-thinking questions, young listeners will learn all about the gases that surround them while building nonfiction comprehension skills.

Did you know that liquids flow and take the shape of whatever container they're poured into? Learn more about liquids! With age-appropriate critical thinking questions and carefully leveled text, young listeners will learn all about liquids while building nonfiction listening skills.

What kinds of solids can you see right now? Solids are a type of matter that is all around us. They can be heavy or weigh almost nothing. With age-appropriate critical thinking questions and carefully leveled text, young listeners will learn all about solids.

Have you ever wondered how astronauts float in space, or how your pizza gets from your plate to your mouth? Basic principles of physics, including learning about distance, displacement, speed, velocity, acceleration, forces, friction, gravity, and Newton’s laws of motion, are explored through informative and engaging text in this newest addition to the How Do series.