Elements, compounds and mixtures - What am I?

I am a pure substance that is made from identical atoms. You can’t separate me into simpler substances.

• Compound

• Mixture

• Colloid

• Element

I am a pure substance that is made from two or more different types of atoms. If you want to separate me into simpler chemicals you will need to use a chemical reaction. 

• 
  Formulation

• Compound

• Solution

• Mixture

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

I am the place you look for a list of all 118 chemical elements, arranged in a specific order.

• Periodic table

• Glossary

• Contents

• Index

I am a tiny cluster of non-metal atoms which are held together by very strong bonds.

• 
  Complex

• Compound

• Lattice

• Molecule

Tags

NGSS.MS-PS1-1

I am made from two or more elements or compounds, but I can be easily separated into pure substances using techniques like filtration, evaporation or a magnet.

• 
  Magnesium carbonate

• Sodium chloride

• Mixture

• Calcium chloride

I am a common liquid which is made up of molecules. Each of my molecules contains two hydrogen atoms and one oxygen atom.

• 
  HO₂

• H₂O2 / Hydrogen dioxide

• Hydrogen peroxide

• Water, H₂O

Tags

NGSS.MS-PS1-1