Howcast - Every year, people in over 100 countries celebrate Earth Day. Here are some projects designed to make the day especially meaningful for your class.

Howcast - Learn the parts of the archery arrow from the pros at Queens Archery in this Howcast video.

Howcast - Learn how to pick a road bike from racer Alexander Barouh in this Howcast road cycling video.

Howcast - Liven up your parties by making your own fog machine, using items that you can find around the house.

Howcast - If you find yourself out in the cold wilderness without matches or a lighter, you can still start a fire. Or you can impress your friends with this little trick.

Howcast - The Earth is an incredible planet. Teaching your kids just how amazing it is may convince everyone in your household to go green.

Howcast - Americans comprise 5 percent of the Earth's population and produce 40 percent of its waste. That may seem irresponsible, but it can change.

Recycling your garbage is noble, and in many places mandatory. But it also can be very confusing. This guide will clear up the rules.

Flashing materials are the metal -- or sometimes vinyl -- connector pieces between sections of your roof or around the chimney, vents, and skylights. They can become damaged over time. Here are some repair tips.

DIY SCI host Steve Spangler demonstrates how you can use aluminum bars to make some crazy sounds!

The Juliana Furtado is the type of bike that makes us hate the term quiver-killer for being cliche, overused, and completely accurate.

In this video we are going to look how to name binary ionic compounds. These compounds deal with the ionic bonding of 2 different elements. Remember that an ionic compound is formed between a metal and a nonmetal or a cation and an...

Writing formulas for ionic compounds is all about canceling out the charges! An ionic compound is formed between a cation and an anion, or a positive and negative charge so the goal is to always get the charges to add up to zero! In this...

Cations, formed by electron loss, influence ionic bond strength. Smaller cations with higher charges create stronger ionic interactions

Dive into the world of the 11 foot 8 bridge in Durham, where countless trucks meet their match. Witness the mayhem captured by Jürgen Henn.

By the end of this learning object, the student :will be able to Recognize metals, nonmetals and their different properties.9803

The thermal mass of an object is its ability to store or absorb heat. Things that are considered ‘difficult’ to heat generally have a high thermal mass. Brick or concrete, for example, heat up only after they’re provided with a lot...

In this final course video, you will learn to render the items we created—the Apple iPhone XR model phone case, the hand grip for the phone case, and the foldable tripod stand attachment.
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Dr. Forrester explains that in order to preserve our natural resources, it is important to reduce, reuse, and recycle. Doing so will help to save energy costs and preserve the environment.

Dr. Forrester explains how we use minerals in our daily lives.

Learn all about single replacement chemical reactions. We'll break down the process and give examples to help you understand this important topic. Perfect for studying for your chemistry test or just brushing up on your knowledge.

Dive into the world of the 11 foot 8 bridge in Durham, where countless trucks meet their match. Witness the mayhem captured by Jürgen Henn.

Writing electron configurations can be a long and daunting task, until you learn the shortcut! Often times called the noble gas configuration, the shorthand notation will have you writing electron configurations very quickly! In this...

Dr. Forrester teaches that magnetism is a force that pushes and pulls on other objects. She defines: gravity, attract, and repels. She teaches about forces that attract or repel other objects and lists principles of magnetic behavior.