Planet Earth is a Tiny, Tiny Object in Space http://www.FreeScienceLectures.com
Do you know how tiny Earth is compared to other planets and stars?
We are very very tiny!
Earth is compared to Venus, Mars, Mercury and Pluto.
Then to Jupiter, Saturn , Uranus and Neptune
Then to the Sun.
Then to Arct
Popcorn Bursting in Slow Motion http://www.FreeScienceLectures.com
A slow motion video of a corn popping.
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It's Never too Late to Study:
http://www.FreeScienceLectures.com
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Notice: This video is copyright by its respectful owners.
The website address on the video does not mean a
Potassium Burns in Air http://www.FreeScienceLectures.com
When potassium is heated is starts reacting with oxygen. Since air is mostly oxygen, the reaction happens pretty quickly and it starts burning.
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It's Never too Late to Study:
http://www.FreeScienceLectures.com
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Potassium Reacts with Water http://www.FreeScienceLectures.com
Potassium is a chemical element. It has the symbol K (Latin: kalium) and atomic number 19.
The name "potassium" comes from the word "potash", as potassium was first isolated from potash.
Potassium is a soft silvery-wh
Puma, Bird and Exploding Balloon in Slow Motion http://www.FreeScienceLectures.com
This video shows action much slower than you see on television or with your eyes.
For example, a puma running ten times slower, you can see every muscle moving. Then some bird flying 10 times slower.
But that's not a