31: Gold(Au, 79) is the best natural conductor. No, actually Silver(Ag,47) is the best, but Gold doesn't oxidize like Silver and Copper(Cu,29) do, so it will last much longer. [For those wanting to know, the best conductor is a superconductor]
32: The Atomic Number {as its name suggests}is the number of Atoms in an Element.[For those of you who have taken chemistry you are probably like me and starting to go red it the face]. NO! An element has 1 atom. The Atomic number is the number of protons in the said atom!
33: Chemistry is the study of blowing stuff up with dangerous chemicals. No! Chemistry is the study of the composition of the universe.
34: Water is an element. No, it is the combination of 2 Hydrogen (H, 1) atoms and 1 Oxygen (O, 8) atom.
35:Objects float/sink in water because they are lighter than water. No, they sink/ float because they are less dense than the water they are displacing
36: Gases are not matter because most are invisible. No, they are matter, they just aren't very dense.
37:Rare earth minerals are rare. No, they are not. They are quite common actually.
38: Oxygen is always transparent. No, as a liquid it is blue and as a solid it is white
39a: The atmosphere is mostly made up of oxygen.
39b: The atmosphere is mostly made up of CO2.
39c: The atmosphere is mostly made up of Hydrogen/Helium (He, 2)/Fluorine (F, 9)/Neon (Ne, 10)/Radon (Rn, 86)/{insert any other gas here}.NONONONONO! It it made primarily of Nitrogen (N, 7) (78.08%).
40:Air=Oxygen. Grrrrr! Air is 78.08% Nitrogen, and only about 20.95% Oxygen!
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