Scientific Principles & Methods

What Causes Some Objects to Fall Slower Than Others?

Is Sand a Liquid? The Science of Granular Materials

What Is Sound Energy? A Simple Explanation

Who Discovered Friction? A Look at the History and Laws

How to Measure pH With Strips and Digital Meters

Can Percent Error Be Negative?

How Long Does It Take to Go to the Sun?

How Are Sound Waves Different From Light Waves?

What Makes Your Hair Static? The Science Behind It

How Does a Lightning Rod Work to Protect Buildings?

What Are Non-Conservative Forces? Definition and Examples

Where Does the Sound of a Snap Come From?

How to Use a Spectrophotometer for Accurate Results

Why Do You Float Better in Saltwater?

Do Gamma Rays Travel Faster Than Visible Light?

What Is 0 dB? The Significance of Zero Decibels

What Is the Difference Between G-Force and Gravity?

What Do UV Lights Show? The Science and Substances Revealed

What Is a Joule in Science and Everyday Life?

How Bright Is 50 Lumens? Visualizing Its Practical Uses