1. The Ocean: When you are in the ocean you will see all of these components that I mentioned.
Salt Water
Fish
Sand
Algea
Seeweed
Rock
2. Sea Water: As the word says Sea Water it means that it is made up of water. If you go swimming in Sea Water you will notice that it is also made up of salt.
Salt
Water
Oxygen
3. Beach Sand: If you try crushing rock you will make sand.
Crushed Rock
Silica
4. Salt:
Sodium Chloride
5. Silicon:
Carbon
Oxygen
Hydrogen
6.Chlorine
Oxygen
Nitrogen
Xenon
Krypton
I do not agree with numbers 5 and 6. Silicon and Chlorine are made up of electrons, protons and neutrons, not by other elements. In addition, you did not inclde a relevant experiment to find out what the constituents of each of the forms of matter are. I regard this as incomplete.
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