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| Question | Answer |
|---|---|
| What is a producer? | organism that uses energy from the sun or other chemical reactions to make its own food. |
| What is a omnivore? | animal that feeds on other animals and plants. |
| What is a scavenger? | organism that feeds on dead animals. |
| What is a decomposer? | an organism that breaks down dead organisms, animal droppings,leaves and other wastes produced by living things. |
| What provides almost all the energy in their ecosystem? | photosynthetic plants and algae. |
| What level of the ecosystem contains the most energy? | producers. |
| What has organisms that fill similar ecological roles? | all ecosystems and biomes. |
| What lives in fresh or salt water and produces their own food? | phytoplankton. |
| What is a abiotic factor? | a nonliving part of a ecosystem. |
| What is a biotic factor | a living part of a ecosystem. |
| How come there is not a lot of organisms that exsist in the polar tundra? | because not many organisms are speacialized to survive the cold. |
| What is a constant source of energy | the sun. |
| What comes from oil? | plastic. |
| If something is very dense will it sink or float? | sink |
| What travels by vibrating air molecules? | sound. |
| What does friction produce? | heat. |
| What burns in our atmosphere because of friction? | shooting stars. |
| What is conduction? | the transfer of thermal energy by collisions between particles in matter. |
| What is radiation? | the transfer of thermal energy by electromagnetic waves |
| What is convection? | the transfer of thermal energy by the movement of matter from one place to another |
| What causes ocean currents? | energy from the sun. |
| What can pass through clouds? | ultra violent rays. |
| What comes from the equator? | warm moist air. |
| What comes from the poles? | cool dry air. |
| What contain earths tectonic plates? | the lithosphere. |
| What can occur on plate boundries? | earthquakes. |
| What happens when two continental plates collide? | mountain building happens. |
| What is uniformitarianism? | the idea that earth that processes that are at work today were also on earth in the past. |
| What is super position? | theory that the undisturbed layers of rock have the oldest layers on top. |
| How can you determine how old a fossil is? | measuring radio active isotopes that remain in the fossil. |
| How can you find evidence on how the environments have changed? | by comparing many fossils from different sedimentary layers. |
| What did plants and animals deal with when continents drifted? | climate change. |
| What caused the oxygen to increase in the atmosphere of early earth? | photosynthesis by bacteria. |
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