WorksheetsCycles of Matter
Total questions: 19
Worksheet time: 15mins
What is another name for evaporation of water through the leaves of plants?
Transpiration
Condensation
Precipitation
Percolation
Which of the following best explains why matter must travel through cycles?
There is an unlimited amount of matter in the universe, so it can take on any form at any time
There is a fixed amount of matter in the universe, so it must take on different forms at different times
Which of the following best explains why nitrogen fixation must take place?
Atmospheric nitrogen is unusable to plants and animals
Nitrogen must be returned to the atmosphere
Animals must breathe in nitrogen
Nitrogen gets "stuck" in the soil and must be untrapped
Many nitrogen fixing bacteria are found in the roots of plants. The plants receive fixed nitrogen and the bacteria receive nutrients from the plant. This is an example of which type of symbiotic relationship?
Competition
Mutualism
Parasitism
Commensalism
Which of the following best explains the idea behind "global warming"?
There is not enough carbon being put back into the atmosphere, trapping solar heat.
Photosynthesis is taking place more than ever, trapping solar heat.
Humans have put too much carbon dioxide back into the atmosphere, trapping solar heat
What is our role in the carbon cycle?
We are made of carbon.
We release it into the atmosphere when we breathe.
We release it into the atmosphere when using fossil fuels.
All of the above.
How plants and animals get nitrogen?
Most plants get the nitrogen they need to grow from the soils or water in which they live.
Animals get the nitrogen they need by eating plants or other animals that contain nitrogen.
Bacteria alter the nitrogen into a form that plants are able to use.
All of the above.
