Science Chapter 5

5 Written Questions

1. water that falls to Earth from a cloud
2. movement of carbon & oxygen through the environment
3. organisms that break down organic matter
4. changing nitrogen gas into usable nitrogen compounds
5. movement of water throughout the environment

5 Matching Questions

1. sugar
2. scavengers
3. 1%
4. lightning
5. respiration

1. a percent of Earth's water that is usable, fresh water
2. b process by which energy is released from food
3. c food produced by plants
4. d organisms that eat dead things they find
5. e responsible for some nitrogen fixation

5 Multiple Choice Questions

1. when water changes from water vapor to a liquid
   1. respiration
   2. condensation
   3. evaporation
   4. food chain
2. movement of nitrogen throughout the environment
   1. nitrogen cycle
   2. water cycle
   3. nitrogen fixation
   4. carbon-oxygen cycle
3. carry out photosynthesis & produce oxygen
   1. evaporation
   2. condensation
   3. decomposers
   4. algae & plants
4. what clouds form around
   1. producers
   2. sugar
   3. dust
   4. 1%
5. transfer of energy from organism to organism
   1. condensation
   2. producers
   3. food chain
   4. food web

5 True/False Questions

1. bacteria → perform most nitrogen fixation

   True        False

2. producers → organisms that eat or consume other organisms

   True        False

3. evaporation → when water is heated & changed into a gas

   True        False

4. photosynthesis → process by which plants make food using energy from the sun

   True        False

5. food web → overlapping food chains in an ecosystem

   True        False