Nitrogen and Carbon Cycles Web Quest - Killeen, TX

and how these cycles function on Earth. Nitrogen Cycle ... What must happen to nitrogen before plants and animals ... What happens to the carbon in pl...

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Biology HS/Science Unit: 02 Lesson: 02

Nitrogen and Carbon Cycles Web Quest Objective: Use the websites given to determine the importance of the nitrogen and carbon cycles and how these cycles function on Earth. Nitrogen Cycle Read the information, and go through the simulations at the websites listed below. Then, answer the questions about the nitrogen cycle. Websites: http://www.kidsgeo.com/geography-for-kids/0161-the-nitrogen-cycle.php http://www.windows2universe.org/earth/Life/nitrogen_cycle.html http://www.teachersdomain.org/asset/lsps07_int_nitrogen/ http://www.to14.com/game.php?id=4d486a36be2dd https://files.nyu.edu/pet205/public/nitrogen.html Questions: 1. Why is nitrogen important to organisms?

2. What must happen to nitrogen before plants and animals can use it?

3. What organisms are able to “fix”, or convert, nitrogen to be usable by plants? How else might nitrogen be “fixed” or converted?

©2012, TESCCC

06/07/12

page 1 of 4

Biology HS/Science Unit: 02 Lesson: 02

4. Draw and label a graphic showing your understanding of the nitrogen cycle.

©2012, TESCCC

06/07/12

page 2 of 4

Biology HS/Science Unit: 02 Lesson: 02

Carbon Cycle Read the information, and go through the simulations at the websites listed below. Then, answer the questions about the carbon cycle. Websites: http://www.kidsgeo.com/geography-for-kids/0159-the-carbon-cycle.php http://www.windows2universe.org/earth/Water/co2_cycle.html http://www.windows2universe.org/earth/climate/carbon_cycle.html http://bcs.whfreeman.com/thelifewire/content/chp58/5802002.html Questions: 1. How is carbon extracted from the atmosphere?

2. How do animals and humans get carbon?

3. What happens to the carbon in plants and animals when they die?

4. What are ways in which carbon is released into the atmosphere?

©2012, TESCCC

06/07/12

page 3 of 4

Biology HS/Science Unit: 02 Lesson: 02

5. Draw and label a graphic showing your understanding of the carbon cycle.

©2012, TESCCC

06/07/12

page 4 of 4