Henry quiz

He found out the element Hydrogen which was "Inflammable air". Guess who he is?(Starting Letters Capital)

How was the quiz

Discuss why you like that paper of chemistry, you had choose in the previous question.

Which is this animal

• possum

• porcupine

• chipmunk

• squirrel

Divers sometime breathe a mixture of helium and oxygen gas when diving in deep seas so as to reduce the partial pressure of oxygen to normal levels. Why is helium used instead of other gases? 

• It is non-toxic 

• It has a low partial pressure 

• It has low solubility in blood 

• It is inert 

• beaker

• graduated cylinder

• Erlenmeyer flask

• test tube

Who invented first microscope

• Milton Reeves

• Hans Lipperhey

• Zacharias Janssen

• George B. Selden

Who is the father of Chemistry

• Antoine Lavoisier

• Aristotle

• Joseph Priestley

• Dmitri Mendeleev

Who invented the first mechanical computer

• John W. Nystrom

• Blaise Pascal

• Abraham Stern

• Ryōichi Yazu

Identify the scientist

• Henry Moseley

• Niels Bohr

• Dmitri Mendeleev

• John Dalton