How to Challenge Kids With Varying Abilities Notice in the following video that the teachers has kids grouped by abilities. This is not evident until the end of the video when she explains that some groups are expected to build more complicated burglar alarms. During the initial introduction to circuits, groups could be random with [...]
Interactive Pendulum Simulator
November 9, 2011 By
How To Use the Interactive Pendulum Simulator Click the blue weight to run the simulator. You have the option of using one or two pendulums as well as using no friction or a measured amount of friction. There is a mathematical relationship between a pendulum’s length, period, and gravity. While the math may appear [...]
Black Light Supplies
November 7, 2011 By
Where to Purchase Black Light Supplies Black lights come in many sizes, the flashlight black light shown as well as phosphors, such as “Glo Germ Powder” and “Glo Germ Lotion ” can be purchased from Amazon.com. The Glo-Germ Lotion and Glo Germ Powder can be used to teach children about the need for washing their [...]
Bill Dance: Fishing Bloopers
October 30, 2011 By
Identify the Motions that Represent Newton’s Laws of Motion The video below will make you laugh. It is a series bloopers made by Bill Dance a famous fisherman. It is definitely a video about motion and every one of Newton’s Three Laws of Motion are repeatedly represented. Kids can watch the video looking for examples [...]
What is a Projectile?
October 29, 2011 By
Projectiles Have Two Basic Characteristics: 1. Projectiles are launched into the atmosphere or space. This means that projectiles objects that are hurled, pitched, tossed, thrown, or propelled in some way but do not have any device that keeps them moving, such as an engine. Instead, projectile, as described by Newton’s First Law of Motion, [...]
Floating
September 15, 2011 By
Why Do Some Heavy Objects Float and Other Heavy Objects Sink? New Terms buoyancy buoyant force density displacement fluid volume Whether an object sinks or floats in a fluid (liquid or gas), depends on several variables: 1. The density of the object in a fluid. (Density is the ratio of the object’s mass [...]
Newton’s Third Law of Motion
March 16, 2011 By
Newton’s Third Law of Motion describes the characteristics of a pair of action/reaction forces: 1. The two forces are equal in magnitude. 2. The two forces push or pull in opposite directions. 3. The two force act on different object. The force of one object is acting on a second object and vise-versa. 4. The [...]
Newton’s First Law of Motion
March 16, 2011 By
Newton’s First Law Describes Inertia What is Inertia? Inertia is the resistance of an object with balanced forces acting on it to change its state of motion. In the diagram to the right, the stick figures are pulling with equal force in opposite directions on a rope. The forces acting on the rope are balanced, [...]
Electromagnetic Radiation: UV Light
March 9, 2011 By
What is Electromagnetic Radiation? What is UV Light? Electromagnetic radiation is a type of energy that has wave-like behavior and can move through space. The electromagnetic spectrum is the range of all electromagnetic energy in order of their energies. The most energetic has very small wavelengths while the least energetic have very large wavelengths. Ultraviolet [...]
Fluorescence vs. Phosphorescence
March 8, 2011 By
What is Luminescence? Terms blacklight excitation energy fluorescence ground state luminescence phosphorescence phosphors phosphorescence photons Luminescence is “COLD LIGHT.” Cold light is produced at low temperatures. Luminescence can be produced in many different ways. One way that cold light is produced is when phosphors absorb UV light and emit visible light. Materials that [...]
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