Mark Cross

How Much Does a Gallon of Gas Weigh?

At What Temperature Does Vegetable Oil Boil?

How Is Density Determined for Solids and Liquids?

How Long Do CDs, DVDs, and Blu-ray Discs Last?

Is Radiation Man-Made or Natural? Exploring Its Origins

What Is Energy Absorption in Science?

Why Are Alloys Better Than Pure Metals?

Can a Lighter Explode on Its Own?

Does Volume Alone Determine If an Object Floats?

Is Lead Magnetic? The Science Behind Lead’s Magnetism

What Are Some Examples of Conductors?

How Does a Flame Test Work to Identify Elements?

What Is Simple Harmonic Motion and How Does It Work?

What Is a Pan Balance and How Does It Work?

Where Are Valence Electrons on the Periodic Table?

Why Do Toilets Swirl Backwards in Australia?

How Does a Snow Maker Work to Create Artificial Snow?

How to Find Atomic Weight and Calculate It From Isotopes

How Long Does It Take an Ice Cube Tray to Freeze?

What Can Break Titanium? Physical and Chemical Forces