From materials hotter than lava to substances so strong, cold, or reactive they seem almost impossible, these are some of the most extreme materials ever discovered. Here are 15 of the most extreme substances on Earth. #chemistry #science #fact #facts #education #documentary Several segments are licensed under creative commons For more video information, please visit our website. The Top Fives show brings you informational and entertaining top five videos! Join us and subscribe for more. Follow Josh on Instagram! Founder and producer of the Top Fives show. Stay up to date with the channel and everything YouTube and business related! Follow us on Facebook! Contact us via the email form here: Note: The videos featured on the Top Fives channel are for educational and informational purposes. If you have a good idea for a video, leave us a comment! We try to read each and every comment made.