Lesson Worksheet: Cycles of Matter: The Nitrogen Cycle Science • 5th Grade
In this worksheet, we will practice describing how matter cycles in the environment and what happens in the nitrogen cycle.
Q1:
How can matter be recycled in an environment?
- AThrough the air organisms breathe
- BThrough the water organisms drink
- CThrough the food organisms eat
- DAll of the above
Q2:
Which of the following states can matter cycled in an environment be in?
- ASolid
- BGas
- CLiquid
- DAll of the above
Q3:
Fill in the blank: Matter is cycled within ecosystems because of the interactions of the in ecosystems.
- Abiotic factors only
- Babiotic factors only
- Cbiotic and abiotic factors
Q4:
True or False: Nitrogen gas makes up most of Earth’s atmosphere.
- ATrue
- BFalse
Q5:
Fill in the blank: The nitrogen cycle is the process in which nitrogen circulates through .
- Athe atmosphere, soil, and organisms
- Bsoil and organisms only
- Cthe atmosphere and organisms only
- Dthe atmosphere and soil only
Q6:
Nitrogen is fixed by organisms including bacteria.
Complete the following sentence: Nitrogen fixing is the process of .
- Aproducing nitrogen gas
- Bchanging nitrogen gas into a form that can be used by organisms
- Ckeeping the amount of nitrogen in the air the same
Q7:
Some bacteria can fix nitrogen on plant roots. This often produces nodules like the ones in this image.
How does this nitrogen return to the soil?
- AWhen new plants grow
- BWhen the plants decay
- CThrough photosynthesis
Q8:
Fill in the blank: Plants take in nitrogen from nutrients in the soil. When the plant absorbs these, it helps it to .
- Agrow
- Bcarry out transpiration
- Cbreathe
Q9:
Fill in the blanks: Matter cycled within ecosystems. When matter is taken in by consumers and decomposers, .
- Ais, it stays within the organisms forever
- Bis, it eventually returns to the environment
- Cis not, this is the end of the cycle
Q10:
How do plants absorb nitrogen?
- AThrough their roots
- BThrough their leaves
- CThrough their flowers
- DThrough their stem
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