Hank describes how astronomers used a technique called gravitational lensing to find the most distant galaxy ever detected -- and how NASA is embarking on a new program to use this same technique to peer deeper into space than ever...

Simple advice for keeping a credible lab notebook

Dr. Boyd performs the popular Elephant Toothpaste demonstration. If you want to try it too, just follow along! Note 1: DO NOT eat or put the foam in your mouth; it is not actually toothpaste or ice cream (it just looks like it). Note 2:...

After explaining the science of the process, Dr. Boyd performs the fun and colorful Skittles Diffusion Demonstration.

Dr. Boyd gives the physics definition of density, then walks you through a demonstration to show how liquids with different densities can form multiple liquid layers in a container.

Watch what happens when Dr. Boyd unexpectedly gets his hands on some dry ice! Minute 0:30 – Explanation Minute 3:04 – Demo 1: Dry Ice In Water Minute 4:05 – Demo 2: The Vibrating Quarter Minute 4:51 – Demo 3: Floating Bubbles Minute 5:56...

Did you know that there is metal in your food AND in your body? Watch Dr. Boyd prove it by extracting iron from breakfast cereal. Minute 0:31 – Introduction Minute 0:56 – What you need Minute 1:26 – Explanation Minute 2:07 – Safety...

Learn about how seeds sprout into plants, and find out if it is possible to grow bean sprouts without soil! 0:00 – Introduction 0:17 – What you need 0:45 – Explanation 2:54 – Safety 3:03 – Growing Bean Sprouts Setup 1 3:44 – Growing Bean...

n a variation of the common 'Volcano Baking Soda' demonstration, Dr. Boyd traps carbon dioxide gas in a balloon.

Friction can be quite strong. Dr. Boyd shows you just how strong it can be with this demonstration.

Dr. Boyd demonstrates how to pick up ice with string Minute 0:31 – Introduction Minute 0:43 – What you need Minute 1:00 – Explanation Minute 1:38 – Safety Minute 1:42 – Demonstration Minute 2:33 – Explanation Minute 3:01 – Follow-up...

Learn about “osmosis” by making a rubber egg! Then stick around for the 2 bonus experiments. And you won’t want to miss the surprise ending!!! 0:00 – Introduction of the lesson 0:23 – What you need 0:44 – Explanation of Osmosis 2:38 –...

Using “cohesion,” Dr. Boyd shows you how you can make water run along a piece of string. 0:00 – Introduction 0:24 – What you need 0:45 – Explanation of cohesion 1:09 – Safety 1:25 – Cohesion Experiment 1 3:35 – Experiment 2 Explanation...

In this fun and educational video, Dr. Boyd gives a simple definition and explanation of what polymers are. Then he makes a very cool type of polymer slime. But not just any type of slime: clear, edible, Water Slime... ...and then he...

Dr Boyd 'The Chemist' explains the "Galileo" thermometer and then demonstrates it in action!

Dr. Boyd explains appropriate attire for performing reactions in the lab. Appropriate lab attire is also known as Personal Protective Equipment (PPE), and is meant to minimize the chance for the researcher to be harmed by the reactions...

Dr. Boyd discusses the chemistry behind "Dr. Poison's" new chemical weapon in the new Wonder Woman movie.

Dr. Boyd explains how a solar eclipse occurs and how to view it safely.

Dr. Boyd demonstrates that oil and water do not mix by showing you how to make a homemade lava lamp. Minute 0:32 – Introduction Minute 0:50 – What you need Minute 1:16 – Explanation Minute 2:57 – Safety Minute 3:06 – Demonstration

What happens when you point the Hubble Space Telescope at the darkest part of the sky for 10 consecutive days? Besides using up extremely valuable time, what would you find?

Neil deGrasse Tyson is an American astrophysicist, author, and science communicator. He is best known for his role on the popular Netflix series "Cosmos". In this speech he describes the difference between people who only have knowledge...