Yearly Archives: 2018

Star Names Word Search
When you look at the stars, most people recognize there are a lot of them. The most common means of distinguishing one star from another is to name them. This star names word search is a great way to familiarize yourself with the names of thirty of the brightest stars […]

Star Names Word Search

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Protons and electrons stick to each other as much as they can, but kinetic energy and quantum mechanics keep them from holding still.
Protons and electrons are attracted to each other because the positive electric charge of the proton is attracted to the negative charge of the electron. But, if they two particles find each other so attractive, why don’t protons and electrons stick together? Orbits and Waves In a sense, protons and […]

Why Don’t Protons Stick to Electrons?

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Thermal polish is sometimes sold as mood polish. (Lelê Breveglieri)
Thermal nail polish is a type of polish that changes colors according to temperature. It’s like wearing a mood ring on your nails, except most thermochromic polish only switches between two colors rather than displaying the whole rainbow. The cool (or hot!) effect involves a bit of chemistry. Here’s how […]

How Does Thermal Nail Polish Work?

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These are different samples of pure zinc. The metal is shiny metallic silver-gray when freshly cut. (Alchemist-hp)
Zinc is a silver-gray metal with element symbol Zn and atomic number 30. The element is essential for human life and widely used in commercial applications. These zinc facts include basic facts, chemical and physical properties, and interesting trivia about the element. Basic Zinc Facts Name: Zinc Atomic Number: 30 […]

Zinc Facts

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disk of ice
When a substance changes its state of matter, it takes a specific amount of energy to complete the change. When the phase change is between solid and liquid, the amount of energy per unit mass is called the heat of fusion. These heat of fusion example problems will show how […]

Heat of Fusion Example Problem

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