This Grade 5 worksheet links matter cycles to energy flow in ecosystems. Students explore the carbon, water, and nitrogen cycles, then match each cycle to its key process. Fill-in items reinforce vocabulary like biomass, biodiversity, evaporation, and nutrients. Hints connect respiration, decomposition, and photosynthesis, helping Grade 5 learners see that matter cycles in loops while energy flows one way from the sun through producers and consumers to decomposers.
Style:
Energy in Ecosystems
Part A: Fill in the Blank
Write the missing word or number on each line.
1. The carbon cycle moves carbon between air, plants, animals, and soil in Grade 5 ecosystems.
2. Evaporation, condensation, and precipitation are all parts of the water cycle.
3. Bacteria in soil change air nitrogen into a form plants can use.
4. When animals breathe out, they release carbon dioxide into the air.
5. The total mass of living things in an ecosystem is called biomass.
6. Energy flows in one direction through ecosystems, from sun to producers to consumers.
7. Decomposers like fungi return nutrients to the soil so new plants can grow.
8. Water returns to clouds when it changes from liquid to gas through evaporation.
9. The variety of life forms in an ecosystem is called biodiversity.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Carbon cycle
→ CO2 moves between air, plants, and animals
CO2 moves between air, plants, and animals
Water cycle
→ Evaporation, condensation, and precipitation
Evaporation, condensation, and precipitation
Nitrogen cycle
→ Bacteria turn N2 gas into nitrates for plants
Bacteria turn N2 gas into nitrates for plants
Energy flow
→ One-way path from sun to producers to consumers
One-way path from sun to producers to consumers
Energy in Ecosystems
★ Part A: Fill in the Blank
Write the missing word or number on each line.
1) The carbon cycle moves carbon between air, plants, animals, and soil in Grade 5 ecosystems.
2) Evaporation, condensation, and precipitation are all parts of the water cycle.
3) Bacteria in soil change air nitrogen into a form plants can use.
4) When animals breathe out, they release carbon dioxide into the air.
5) The total mass of living things in an ecosystem is called biomass.
6) Energy flows in one direction through ecosystems, from sun to producers to consumers.
7) Decomposers like fungi return nutrients to the soil so new plants can grow.
8) Water returns to clouds when it changes from liquid to gas through evaporation.
9) The variety of life forms in an ecosystem is called biodiversity.
★ Part B: Matching
Match each item on the left to the correct answer on the right.
1) Match each item to its correct answer.
Carbon cycle
→ CO2 moves between air, plants, and animals
CO2 moves between air, plants, and animals
Water cycle
→ Evaporation, condensation, and precipitation
Evaporation, condensation, and precipitation
Nitrogen cycle
→ Bacteria turn N2 gas into nitrates for plants
Bacteria turn N2 gas into nitrates for plants
Energy flow
→ One-way path from sun to producers to consumers
One-way path from sun to producers to consumers
Ready to Practice?
Complete each section carefully.
10 Questions
10-15 minutes
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