NATS 1840 Lecture Notes - Subatomic Particle, Electromagnetism, Properties Of Water

• School: York University
• Department: Natural Science
• Course: NATS 1840
• Professor: Carol Bigwood

Document Summary

Science, technology and the environment (sc nats 1840a) - tuesday. Readings: 3. 3, 3. 5, 3. 6 activity # 3 electronic copy of experiment to turnitin. com. The cycling of matter & energy in the environment. Living organisms consume nutrients and energy to thrive. Six macronutrients are constantly recycled carbon, oxygen, hydrogen, nitrogen, phosphorus, and sulphur. Biogeochemical cycles: physical & chemical processes which ensure the exchange of matter & energy between the biotic and abiotic parts of the ecosphere. To understand these cycles, we must understand the nature of matter and energy. Matter: anything that takes up space and has mass. Composed of atoms of elements which interact chemically with one another to form more complicated molecules of compounds. Elements: basic chemical constituents of matter, i. e. the stuff from which all things are made. Elements cannot be further broken down by chemical means. Atom: basic physical unit of an element, i. e. smallest piece of matter that exhibits the properties of that element;