Science & Nature
Astronomy 101: Finding the Constellations
The tradition of tracking the constellations dates back thousands of years. Like the ancient people who first named them, you don’t need years of training in astronomy, a planetarium, or even a telescope to enjoy watching the constellations. More…
How to Balance Chemical Equations Howcast video
According to the rules of chemistry, matter must be conserved in chemical reactions. When you balance a chemical equation, you account for all of the matter in the reaction.
How to Build an Erupting Volcano Howcast video
Have fun and make a mess, all in the name of science.
How to Build a Hydrogen Fuel Cell Howcast video
Generating pollution-free electricity, the hydrogen fuel cell is a promising renewable energy technology.
Chemistry 101: Elements, Compounds, and Mixtures
When dealing with materials, we typically classify things as being either elements, compounds, or mixtures. More…
How to Conduct an Experiment Using the Scientific Method Howcast video
The scientific method was devised to allow scientists to conduct investigations objectively. Here’s the method in a nutshell.
How to Make a Metal Detector Howcast video
Like looking for lost treasure? There’s no need to break the bank for a high-end metal detector—just dig through your junk drawer!
How to Make Invisible Ink Howcast video
Write a secret message with invisible ink using these simple household items.
Memes: What They Are and How They Work
Memes can seem vague because cultural ideas aren’t as concrete as the physics of gravity or the logic in algebra, but there is an actual science behind them. In this guide, we dip our toes into the science behind memes, breaking down their composition, seeing how they evolve, and why the deliverer is as important as the message. More…
Quantum Mechanics: Bohr’s Atomic Theory
One of the most significant contributions to the study of quantum mechanics is the theory of the atom and its quantum structure—known as Bohr’s Atomic Theory. More…
Science Fair Project: Can a Visible Light Outshine Infrared Radiation?
Although it may sound high-tech, all you’ll need is a flash light, TV remote control, and some other variables. More…
Science Fair Project: Do Clouds Tell Us What Weather Is Coming?
There are several types of clouds that appear due to approaching and current weather conditions. Here is how you can predict the weather by watching clouds. More…
Science Fair Project: Which Foods Do Molds Love Best?
In this experiment you’ll learn that some molds grow better on some foods than others, and that various factors contribute to their growth. More…
How to See Manhattanhenge Howcast video
Broadway’s neon lights are bright, but to see New York City truly shine, check out Manhattanhenge.
How to Spot Constellations Howcast video
As you gaze at the night sky, open your eyes to the constellations that shine above you.
Theories of the Universe: The Concept of Time
In this guide, we will look at the meaning and perception of time, and its different categories. More…
How to Understand Atoms Howcast video
The structure of atoms determines their physical and chemical properties. Using these guidelines, you can understand why some atoms are reactive and others are not.