Part I:
1: Atmosphere:The atmosphere is a layer of gases which surrounds the entire Earth. It consists mainly of Nitrogen, Oxygen, as well as a few other gaseous elements.
2: Methane: Methane, CH4, is a chemical compound composed of one carbon atom and four hydrogen atoms.
3: Ammonia:Ammonia is a chemical compound that consists of one nitrogen atom and three hydrogen atoms tightly bonded, which gives it the chemical symbol NH3.
4: Chemical reaction:Interaction of two or more chemicals that produces one or more new chemical compounds, or alters the properties of the mixed chemicals. Most reactions require heat, pressure, radiation, other conditions, and/or the presence of accelerators
5: Solar energy:Solar energy is energy derived from the Sun's radiation. The Sun is an powerful source of energy and provides the Earth with as much energy every hour as we collectively use in a year worldwide.
6: Carbon dioxide:Colorless, odorless, non-combustible greenhouse-gas that contributes to global warming. Formed by complete combustion of fossil fuels and carbon containing products, it is released also through respiration by living organisms and by the gradual oxidation of organic matter in soil.
7: Hydrogen:Hydrogen is a highly flammable chemical element that occurs in great abundance throughout the universe.
8:Gravity:Gravity is a force pulling together all matter. The more matter, the more gravity, so things that have a lot of matter such as planets and moons and stars pull more strongly.
9: Oxygen:Oxygen is a colorless, odorless, tasteless gaseous chemical element which appears in great abundance on Earth, trapped by the atmosphere.
10: Ozone: Ozone (O3) is a highly reactive gas composed of three oxygen atoms. It is both a natural and a man-made product that occurs in the Earth's upper atmosphere (the stratosphere) and lower atmosphere (the troposphere).
11: Ultraviolet radiation: Ultraviolet (UV) radiation is defined as that portion of the electromagnetic spectrum between x rays and visible light, i.e., between 40 and 400 nm (30–3 eV).
12: Microorganism:A micro organism is a living being that is too small to be seen by the naked eye. They require microscopes to be observed, thus giving them the name 'microscopic'.
13: Bacteria: Bacteria are microorganisms too small to see with the naked eye that exist in virtually all environments in the world.
14: Photosynthesis: Photosynthesis is a chemical process, by which plants and some bacteria use the energy from sunlight to produce sugar. This process takes place in the chloroplasts and the plants normally combine carbon dioxide and water to make sugar and oxygen.
15: Composition:Ingredients of which a good is made, and the degree or proportion of
their concentration, purity, strength, etc. Agreement under which creditors accept a fractional payment of their claims as the final settlement.
Part II:
1. What chemical process would you identify as being responsible for the disappearance of methane and ammonia and the presence of nitrogen, hydrogen and oxygen in the Earth's atmosphere? Explain.
The chemical process that could be identified for the disappearance of methane and ammonia and the presence of nitrogen, hydrogen and oxygen in the Earth's atmosphere is evaporation.
2. Could animals have lived on ancient Earth before green plants? Explain.
All life on Earth requires carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorus as well as numerous other elements in smaller amounts; it also requires water as the solvent in which biochemical reactions take place.
3. Scientists are concerned that certain chemicals when released into the atmosphere cause the level of ozone to decrease. Predict What might happen to living things on Earth is the ozone layer continues to decrease.
If the ozone layer continues to decrease, I predict that there would be no life. All animals would begin to die, which would lead to extinction & no life.
Part III:
I will turn in class
1: Atmosphere:The atmosphere is a layer of gases which surrounds the entire Earth. It consists mainly of Nitrogen, Oxygen, as well as a few other gaseous elements.
2: Methane: Methane, CH4, is a chemical compound composed of one carbon atom and four hydrogen atoms.
3: Ammonia:Ammonia is a chemical compound that consists of one nitrogen atom and three hydrogen atoms tightly bonded, which gives it the chemical symbol NH3.
4: Chemical reaction:Interaction of two or more chemicals that produces one or more new chemical compounds, or alters the properties of the mixed chemicals. Most reactions require heat, pressure, radiation, other conditions, and/or the presence of accelerators
5: Solar energy:Solar energy is energy derived from the Sun's radiation. The Sun is an powerful source of energy and provides the Earth with as much energy every hour as we collectively use in a year worldwide.
6: Carbon dioxide:Colorless, odorless, non-combustible greenhouse-gas that contributes to global warming. Formed by complete combustion of fossil fuels and carbon containing products, it is released also through respiration by living organisms and by the gradual oxidation of organic matter in soil.
7: Hydrogen:Hydrogen is a highly flammable chemical element that occurs in great abundance throughout the universe.
8:Gravity:Gravity is a force pulling together all matter. The more matter, the more gravity, so things that have a lot of matter such as planets and moons and stars pull more strongly.
9: Oxygen:Oxygen is a colorless, odorless, tasteless gaseous chemical element which appears in great abundance on Earth, trapped by the atmosphere.
10: Ozone: Ozone (O3) is a highly reactive gas composed of three oxygen atoms. It is both a natural and a man-made product that occurs in the Earth's upper atmosphere (the stratosphere) and lower atmosphere (the troposphere).
11: Ultraviolet radiation: Ultraviolet (UV) radiation is defined as that portion of the electromagnetic spectrum between x rays and visible light, i.e., between 40 and 400 nm (30–3 eV).
12: Microorganism:A micro organism is a living being that is too small to be seen by the naked eye. They require microscopes to be observed, thus giving them the name 'microscopic'.
13: Bacteria: Bacteria are microorganisms too small to see with the naked eye that exist in virtually all environments in the world.
14: Photosynthesis: Photosynthesis is a chemical process, by which plants and some bacteria use the energy from sunlight to produce sugar. This process takes place in the chloroplasts and the plants normally combine carbon dioxide and water to make sugar and oxygen.
15: Composition:Ingredients of which a good is made, and the degree or proportion of
their concentration, purity, strength, etc. Agreement under which creditors accept a fractional payment of their claims as the final settlement.
Part II:
1. What chemical process would you identify as being responsible for the disappearance of methane and ammonia and the presence of nitrogen, hydrogen and oxygen in the Earth's atmosphere? Explain.
The chemical process that could be identified for the disappearance of methane and ammonia and the presence of nitrogen, hydrogen and oxygen in the Earth's atmosphere is evaporation.
2. Could animals have lived on ancient Earth before green plants? Explain.
All life on Earth requires carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorus as well as numerous other elements in smaller amounts; it also requires water as the solvent in which biochemical reactions take place.
3. Scientists are concerned that certain chemicals when released into the atmosphere cause the level of ozone to decrease. Predict What might happen to living things on Earth is the ozone layer continues to decrease.
If the ozone layer continues to decrease, I predict that there would be no life. All animals would begin to die, which would lead to extinction & no life.
Part III:
I will turn in class