Term
| What kind of molecule is water and why? |
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Definition
| Polar, because the bond between hydrogen and oxygen has unequal sharing of electrons so an unequal charge (H=+, O=-) |
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Term
| What gives water its unique properties? |
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Definition
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Term
| What is cohesion in water molecules? name one function of cohesion. |
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Definition
| Hydrogen bonds between water molecules hold them together in a network. Function= surface tension, enables some small organisms to walk on water. (waterstriders) |
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Term
| What is adhesion in water molecules? name one function of adhesion. |
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Definition
| attracted and adhere to the walls of the water's container. Function = water molecules attracted to sides of the xylem, so water is drawn up the stem of plants. (redwood) |
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Term
| What is a thermal property of water? |
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Definition
| high heat capacity, because high heat is needed to break the bonds, so organism has stable temperature. (crocodiles) |
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Term
| What are the advantages of water being a universal solvent? |
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Definition
| transporting substances around the bodies is easier and many animals have blood as their transport medium (blood is predominantly water) |
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