The teacher should discuss safety procedure with students at the beginning of the experiment or laboratory assignment. The teacher should give list of rules for students.

1. Always wear safety goggles.

2. Never touch or rub eyes of face during science investigation.

3. Keep lids on when not in use.

4. Never use broken/chipped glassware.

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2 years ago

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Carbon is a fundamental element of all living things. Carbon atoms move continiously through living organisms (biosphere), the s

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Worldwide circulation and reutilization of carbon atoms, chiefly due to metabolic processes of living organisms. Inorganic carbon, in the form of carbon dioxide, is incorporated into organic compounds by photosynthetic organisms; when the organic compounds are broken down in respiration, carbon dioxide is released. Large quantities of carbon are "stored" in the seas and the atmosphere, as well as in fossil fuel deposits.

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3 years ago