Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Nitrogen Cycle -- intro/N fixing

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

NITROGEN

a)

N

b)

P

c)

Na

d)

Ni

2.

NO2

a)

Nitrite

b)

Nitrate

c)

Nitrogen Gas

d)

Ammonia

3.

NO3

a)

Nitrite

b)

Nitrate

c)

Nitrogen Gas

d)

Ammonia

4.

NH3

a)

Nitrite

b)

Nitrate

c)

Nitrogen Gas

d)

Ammonia

5.

The form of Nitrogen that life CANNOT use

a)

NO3

b)

NO2

c)

NH3

d)

N2

6.

CHECK TWO:

The TWO forms of Nitrogen that life CAN use

a)

NO3

b)

NO2

c)

NH3

d)

N2

7.

Dead material is broken down into smaller molecules

a)

Decomposition

b)

Detritus

8.

Dead Material

a)

Decomposition

b)

Detritus

9.

Bacteria and _______ are DECOMPOSERS

a)

Fungi

b)

Plants

c)

Animals

d)

Protists

10.

What are these?

a)

Legumes growing on plant roots

b)

Beans growing on plant stems

11.

Who lives inside of these nodules?

a)

Nitrogen Fixing Bacteria

b)

Parasites consuming Nitrogen

12.

the abbreviation for NITROGEN

a)

N

b)

P

c)

Na

d)

Ni

13.

Why are decomposers so important?

a)

They remove the dead body off of the forest flore

b)

They release the nutrients from a dead body into the soil

14.

Who do decomposers directly benefit?

a)

Plants

b)

Animals

15.

The NITROGEN that makes up the proteins and DNA in a body will eventually end up...

a)

in the soil

b)

in the air