Name
TEACHER COPY
Period _______ Date ______________
Environmental Science – Nitrogen Cycle – Chapter 5.2
Directions: Fill in the information using the Classroom Teacher Key or the Online Teacher
Key. The drawing is on page 134 in the Environmental Science Textbook.
Environmental Science Standard and element:
SEV1. Students will investigate the flow of energy and cycling of matter within an
ecosystem and relate these phenomena to human society.
a.)
Interpret biogeochemical cycles including hydrologic, nitrogen, phosphorus,
oxygen, and carbon cycles. Recognize that energy is not recycled in ecosystems.
1.) Put chart in Science Notebook behind the Chapter 5 Word Study
after it has been checked.
2.) Nitrogen Description was accurate and complete with no abbreviations.
____yes
____yes
____no
____no
3.) 7 descriptions or labels on drawing were accurate and complete.
____yes
____no
4.) Drawing was accurate with all parts included.
____yes
____no
(Part of Notebook Grade)
Nitrogen Cycle – the process in which nitrogen circulates among the air, soil, water, plants, and
animals in an ecosystem
Nitrogen is a colorless, odorless gas that is a nonmetallic element. Nitrogen gas makes up about
78% of the Earth’s atmosphere. Nitrogen is an essential nutrient needed by all plants and animals.
NITROGEN CYCLE