Earth Cycles Overview
In this module, students do hands-on activities related to the water, oxygen, carbon and nitrogen cycles. The module begins with a formative assessment. Each section includes a resource page and PowerPoints that explain the basic concepts involved. The main goal of the module is to understand how the cycles operate and to be aware that our actions have an effect on the life of the cycles and ultimately on the earth.
In the water cycle section, students place the different parts of the cycle on a model. They also do an experiment to show the effects of acid rain on the earth.
In the oxygen cycle, students see a demonstration of the cycle and then do an experiment to see the effect of oxygen deprivation.
In the carbon cycle, students collect data and create a graph about the comparison of carbon in the air and temperature increase.
In the nitrogen cycle, students play a game that requires them to go to stations around the room and get information about nitrogen.
Finally, a project involves students creating a board game using information they learned from the activities above. They can then play their game with others in the class.
A summative assessment is included.
Grade 7, Science, Earth Science
6-8 Benchmark C. Describe interactions of matter and energy throughout the lithosphere, hydrosphere and atmosphere (e.g., water cycle, weather and pollution).
Y2003.CSC.S01.G06-08.BC.L07.I01 / Earth Systems
01. Explain the biogeochemical cycles which move materials between the lithosphere (land), hydrosphere (water) and atmosphere (air).
Y2003.CSC.S01.G06-08.BC.L07.I02 / Earth Systems
02. Explain that Earth’s capacity to absorb and recycle materials naturally (e.g., smoke, smog and sewage) can change the environmental quality depending on the length of time involved (e.g. global warming).
Y2003.CSC.S01.G06-08.BC.L07.I03 / Earth Systems
03. Describe the water cycle and explain the transfer of energy between the atmosphere and hydrosphere.
Y2003.CSC.S01.G06-08.BC.L07.I04 / Earth Systems
04. Analyze data on the availability of fresh water that is essential for life and for most industrial and agricultural processes. Describe how rivers, lakes and groundwater can be depleted or polluted becoming less hospitable to life and even becoming unavailable or unsuitable for life.