3 Minute Video Quiz
How good is your general knowledge? With this video quiz you can put it to the test in only three minutes. Ready, steady, go!
How good is your general knowledge? With this video quiz you can put it to the test in only three minutes. Ready, steady, go!
Did you know that glass isn't a solid? Its molecules are constantly flowing, so it's more like a liquid. The scientific designation is "amorphous solid".
