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21 Cards in this Set
- Front
- Back
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These are required for all organisms; They are absorbed from soil by plants and used to build DNA; The formula is PO₄ with negative 3 charge. These substances are....
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phosphates
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This is a major component of limestone, seashells, concrete and contains a lot of carbon dioxide. It helps maintain the pH of our oceans. This substance is....
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calcium carbonate
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This is a polluting gas released in car exhaust. It can lead to brown air smog and acid rain. It is formed when oxygen reacts with nitrogen. This gas is .....
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nitrogen dioxide
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These substances are the main plant food that plants absorb from the soil. We get them from plants to make our body's protein. They contain a nitrogen atom and 3 oxygen atoms.They are....
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nitrates
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The air is made of 80% nitrogen and 20% ____, which we breathe to survive. It is.....
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oxygen, O₂
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This gas is partly what we and nearly all other organisms exhale as we burn fuel in our bodies. It is also released when we burn wood or anything else organic. It is the main greenhouse gas. This substance is....
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carbon dioxide, CO₂
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This is a poisonous gas made of a single carbon and a single oxygen. It is released in car exhaust and from unvented gas-fired home heaters with inadequate oxygen available. This gas is....
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carbon monoxide, CO
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A common disinfectant gas used to make water safe to drink is ____. It has the symbol Cl₂.
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chlorine
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The top 6 elements that make up all living things are....
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CHONPS
[Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus, Sulfur) |
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We require this liquid to survive. It covers 3/4 of the planet and, as a gas is responsible for our weather. It is an important greenhouse gas. It is...
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water, H₂O
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This gas is an unstable form of oxygen that contains 3 oxygen atoms. In the stratosphere, it blocks most UV light from getting to us. It is a pollutant at ground level. This gas is....
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ozone, O3
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This chemical is what makes seawater different from freshwater lakes & rivers. It's formula is NaCl. This substance is....
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salt
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This substance increases the pH of acidic soil, making it more basic. It's usually added to lawns & gardens as a powder. It has one calcium atom and one oxygen atom. It is....
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calcium oxide, also called Lime
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This is the food we consume that is made by plants when they photosynthesize. Oxygen gas is also produced. It's made from CO₂ and H₂O and has CH&O in it. It is called....
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glucose
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When plants combine CO₂ and H₂O together using photosynthesis, they make this gas that we breathe. It is...
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oxygen, O₂
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When plants photosynthesize, the presence of sunlight, they consume water and this greenhouse gas called....
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carbon dioxide
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This substance is what most of us use to power our cars and thus pollute the environment. It has 8 carbons and 18 hydrogen atoms. It is....
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gasoline
(octane is a main ingredient in gasoline) |
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This gas makes up 80% of the air we breathe. The other 20% is oxygen. It is found in our protein. This gas is...
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nitrogen, N₂
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This gas is also called natural gas, having 1 carbon with 4 hydrogens. It is a potent greenhouse gas released from cows, swamps, oil wells, and coal mines. It is....
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methane
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This group of gases has the abbreviation, CFCs. They trash the ozone layer in the stratosphere. They have been banned by the Montreal Protocol. They are called....
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chlorofluorocarbons
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This polluting gas is released when we burn coal to make electricity or make steel. It is very irritating. It has a sulfur and 2 oxygens. It is called....
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sulfur dioxide
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