Hydrogen



 

quiz

 

 

your assignment

This worksheet comes from the linked workbook and has this assignment and lots of other fun science worksheets related to the science names projects.

 

 

Hydrogen is the lightest element. It is a colourless, odourless gas and about 14 times lighter than air. Hydrogen is a reactive element and little 'free' hydrogen gas is found on earth. Hydrogen is mostly combined with other elements to form compounds. Water is a compound of hydrogen and oxygen. The sun and stars are mostly made of hydrogen and this gas is also spread very thinly throughout space. For these reasons hydrogen is the most abundant element in the universe.

 

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