CoolStuff Blog

Reflection, Refraction, Diffraction & Interference...That's COOL!
Reflection, Refraction, Diffraction & Interference...That's COOL!
The Mini Ripple Tank is a great way to address the wave-energy standards and to teach about the properties of waves by showing how water waves behave. Check out this CoolStuff post for refraction, reflection, and diffraction experiments.
Principia Mathematica: Let's Revisit Newton's Laws
Principia Mathematica: Let's Revisit Newton's Laws
Newton’s Principia Mathematica, the book published in 1687, contains Newton’s three laws of motion. Most people think he wrote it to explain forces on blocks, falling stones, and pulleys. But that’s not true. The purpose of the book was to...
Calories From a Heat Pack
Calories From a Heat Pack
The heat pack is a convenient way to warm up your hands but can also provide a good lesson in physical science. In this CoolStuff post, we go over endothermic and exothermic chemical and physical reactions, how many calories of...
Five Demonstrations for the First Day of Class!
Five Demonstrations for the First Day of Class!
On the first day of school, it's a good idea to show a demo that gets students thinking and sets the stage for what the class will look like over the course of the year. In this post, we showcase...
Three Right Hand Rules of Electromagnetism
Three Right Hand Rules of Electromagnetism
Teaching electricity and magnetism is complicated by the challenge that the magnetic forces are perpendicular to the motion of the particles and currents. This requires a three-dimensional perspective which can introduce a variable of a “wrong” direction. To prevent errors,...
The Physics of a Roller Coaster Loop
The Physics of a Roller Coaster Loop
There is so much physics going on in the loop of a roller coaster. Angular velocity, centripetal acceleration, conservation of energy, and more! In this post, we go over how to collect the data by using a Hot Wheels track...
Demonstration of The Photoelectric Effect!
Demonstration of The Photoelectric Effect!
Demonstrating the photoelectric effect is as easy as using an electroscope and a few common lab materials. In this post, watch physics teacher James Lincoln demonstrate the photoelectric effect.
Powering Imagination and Creativity OneCar at a Time
Powering Imagination and Creativity OneCar at a Time
OneCar is a comprehensive STEM program that allows students to explore mechanics, energy, and motion in exciting ways. Each OneCar has a car chassis, four wheels, and supplies for students to create at least 8 different powered versions. In this...
Cool Stuff Demos with Violet Lasers
Cool Stuff Demos with Violet Lasers
The Violet Laser Pointer has a stunning blue-purple glow at 405 nm and is perfect for teaching and demonstrating all about fluorescence, spectroscopy, and microscopy. This laser can also be used for all types of light/matter science experiments. View our...
Air Powered Projectile: An In-Depth Look
Air Powered Projectile: An In-Depth Look
One of the best ways to engage your students in the study of projectile motion is with direct experiment and observation. For this purpose, we recommend our air-powered projectile, and here are five experiments to get you started.
Sound and Waves Demonstrations
Sound and Waves Demonstrations
The first step to Visualize Acoustics! The Mechanical Wave Complete Bundle is an important addition to the laboratory of any teacher who is passionate about the physics of waves or the physics of sound. Here are a few sound and...
Measuring Forces on an Inclined Plane
Measuring Forces on an Inclined Plane
Forces On Inclined Plane Demonstrator makes the component theory of forces a tangible reality for every student! Here's how to use the Forces On Inclined Plane Demonstrator in your classroom.