• Describe molecules forming a solution (e.g., salt added to water dissolves, forming a salt water solution, until saturation when no more salt will dissolve).
TOPS Solutions
TOPS Rocks & Minerals
• Describe how to separate mixtures and or solutions of several different kinds of substances (e.g., sand, sugar, iron filings).
TOPS Analysis
• Describe the structure of atoms in terms of protons and neutrons forming the nucleus, which is surrounded by electrons (e.g., a helium atom usually has a nucleus formed by 2 protons and 2 neutrons, which is surrounded by 2 electrons).
[Study periodic table]
• Describe how atoms bond to form molecules in terms of transferring and/or sharing electrons (e.g., sodium atoms transfer an electron to chlorine atoms to form salt).
[Study periodic table]