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Science test prep!!
studying for science test on thursday
| Question | Answer |
|---|---|
| Earth Science | Test Prep |
| How does the chemical structure of water molecules cause them to stick together? | Like magnets the opposite ends are attracted to each other, except instead of magnets causing the attraction it is an electric force. |
| What are some of waters unusual properties ? | Specific heat, surface tension, capillary action, and universal solvent |
| What are three states in which water exist on Earth? | Solid, liquid, gas |
| How do people and other living things use water ? | All living things need water in order to survive, other organisms use it differently. Water allows organisms to obtain chemicals from their surroundings, break down food, grow, reproduce, and move substances within their bodies. |
| How is earths water distributed? | roughly 97% saltwater found in oceans, only 3% is fresh water. Ice 76%, shallow groundwater 12%, Deep ground water 11%, lakes and rivers 0.34%, and water vapor 0.037%. |
| Hoe does earths water move through the water cycle? | Evaporation, condensation, and precipitation, has no real order, driven by an energy source from the sun. condensation forms clouds. |
| What is a river system ? | A bunch of rivers or streams that feed into the main river / a river and all of its tributaries |
| How do ponds and lakes form? | they form when water collects in hollows and low- lying areas of land |
| What changes can occur in lakes ? | they can change for many reasons, in addition o seasonal changes but can also have long term changes that can lead to death. Seasonal: winter, spring, summer, fall. Long term: organisms constantly release waste products in river, eutrophication |
| What are the common types of freshwater wetlands ? | swamps, bogs, marshes |
| Which human activities threaten the Florida everglades? | agriculture, development, and the introduction of new species |
| What important functions do wetlands serve? | to store the extra water/ run off and help prevent floods. Natural water filters. Habitat to animals: manatees , |
| How does water move through underground layers of rock and soil? | trickles down between particles of soil and through cracks and spaces in layers of rock. |
| How so people obtain water from an aquifer? | By drilling a well below the water table |
| What atoms make up a water molecule | Hydrogen and Oxygen |
| Earth Science | Polarity |
Created by:
singergirl234
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