Life Science Crossword: Ecosystems | Worksheet - Free Printable
Educational worksheet: Life Science Crossword: Ecosystems | Worksheet. Download and print for classroom or home learning activities.
PNG
301×388
192.5 KB
Free · Personal Use
Quality Assured by Worksheets Library Team
Reviewed for educational accuracy and age-appropriateness
ID: #965119
⭐
Show Answer Key & Explanations
Step-by-step solution for: Life Science Crossword: Ecosystems | Worksheet
▼
Show Answer Key & Explanations
Step-by-step solution for: Life Science Crossword: Ecosystems | Worksheet
Let’s solve this crossword puzzle step by step using the clues and the Word Bank.
---
Word Bank:
consumer, producer, decomposer, symbiotic, ecosystem, population, niche, competition, food chain, exotic
---
1. A community and its physical environment → ECOSYSTEM
→ That’s the whole system — living things + their surroundings. Fits “ecosystem” from the word bank.
4. Long-term relationship between two organisms → SYMBIOTIC
→ Symbiosis is when two species live closely together long-term. Yes, “symbiotic” fits.
5. Consumer that breaks down the tissues of dead organisms → DECOMPOSER
→ Decomposers like fungi and bacteria break down dead stuff. Perfect match.
7. Organism that is not native to its environment → EXOTIC
→ Exotic means外来 (foreign) — not originally from there. Correct.
8. The part of the ecosystem that creates its own food using sunlight → PRODUCER
→ Producers (like plants) make their own food via photosynthesis. Yes.
9. Shows how all the parts of an ecosystem are related by what they eat and what eats them → FOOD CHAIN
→ Food chain shows who eats whom. Exactly matches.
10. Role of a population in a habitat → NICHE
→ Niche = job or role in the ecosystem. Like “what it does and where it fits.” Good.
---
2. Organisms have this type of contest for food and resources → COMPETITION
→ When animals fight over food or space, it’s competition. Makes sense.
3. These organisms in the ecosystem must eat to get the energy they need → CONSUMER
→ Consumers can’t make their own food — they eat others. Yes.
6. Individuals of the same kind living in an environment → POPULATION
→ Population = group of same species in one area. Correct.
---
Now let’s plug these into the grid mentally (or on paper) to check if they fit the letter counts and intersections.
We’ll list answers with direction and number:
Across:
1. ECOSYSTEM (9 letters) — fits across top row? Let’s assume yes based on standard layout.
4. SYMBIOTIC (9 letters)
5. DECOMPOSER (10 letters)
7. EXOTIC (6 letters)
8. PRODUCER (8 letters)
9. FOOD CHAIN (10 letters, but written as two words — still 10 characters including space? In crosswords, spaces usually ignored — so 10 letters: F-O-O-D-C-H-A-I-N)
Wait — “FOODCHAIN” is 9 letters? Let’s count: F-O-O-D-C-H-A-I-N → 9 letters. But clue says “food chain” — maybe it’s accepted as 9-letter word? Or perhaps it’s “FOODCHAIN” without space — 9 letters.
Actually, looking at typical puzzles, “food chain” is often entered as 9 letters: F-O-O-D-C-H-A-I-N.
But let’s double-check clue 9: “Shows how all the parts...” — definitely “food chain”.
Similarly, clue 10: “Role of a population...” → NICHE (5 letters)
Down:
2. COMPETITION (11 letters) — long word, probably vertical down column
3. CONSUMER (8 letters)
6. POPULATION (10 letters)
All words match the definitions and are in the word bank.
No contradictions found.
---
Final Answer:
Across:
1. Ecosystem
4. Symbiotic
5. Decomposer
7. Exotic
8. Producer
9. Food chain
10. Niche
Down:
2. Competition
3. Consumer
6. Population
---
Word Bank:
consumer, producer, decomposer, symbiotic, ecosystem, population, niche, competition, food chain, exotic
---
Across Clues:
1. A community and its physical environment → ECOSYSTEM
→ That’s the whole system — living things + their surroundings. Fits “ecosystem” from the word bank.
4. Long-term relationship between two organisms → SYMBIOTIC
→ Symbiosis is when two species live closely together long-term. Yes, “symbiotic” fits.
5. Consumer that breaks down the tissues of dead organisms → DECOMPOSER
→ Decomposers like fungi and bacteria break down dead stuff. Perfect match.
7. Organism that is not native to its environment → EXOTIC
→ Exotic means外来 (foreign) — not originally from there. Correct.
8. The part of the ecosystem that creates its own food using sunlight → PRODUCER
→ Producers (like plants) make their own food via photosynthesis. Yes.
9. Shows how all the parts of an ecosystem are related by what they eat and what eats them → FOOD CHAIN
→ Food chain shows who eats whom. Exactly matches.
10. Role of a population in a habitat → NICHE
→ Niche = job or role in the ecosystem. Like “what it does and where it fits.” Good.
---
Down Clues:
2. Organisms have this type of contest for food and resources → COMPETITION
→ When animals fight over food or space, it’s competition. Makes sense.
3. These organisms in the ecosystem must eat to get the energy they need → CONSUMER
→ Consumers can’t make their own food — they eat others. Yes.
6. Individuals of the same kind living in an environment → POPULATION
→ Population = group of same species in one area. Correct.
---
Now let’s plug these into the grid mentally (or on paper) to check if they fit the letter counts and intersections.
We’ll list answers with direction and number:
Across:
1. ECOSYSTEM (9 letters) — fits across top row? Let’s assume yes based on standard layout.
4. SYMBIOTIC (9 letters)
5. DECOMPOSER (10 letters)
7. EXOTIC (6 letters)
8. PRODUCER (8 letters)
9. FOOD CHAIN (10 letters, but written as two words — still 10 characters including space? In crosswords, spaces usually ignored — so 10 letters: F-O-O-D-C-H-A-I-N)
Wait — “FOODCHAIN” is 9 letters? Let’s count: F-O-O-D-C-H-A-I-N → 9 letters. But clue says “food chain” — maybe it’s accepted as 9-letter word? Or perhaps it’s “FOODCHAIN” without space — 9 letters.
Actually, looking at typical puzzles, “food chain” is often entered as 9 letters: F-O-O-D-C-H-A-I-N.
But let’s double-check clue 9: “Shows how all the parts...” — definitely “food chain”.
Similarly, clue 10: “Role of a population...” → NICHE (5 letters)
Down:
2. COMPETITION (11 letters) — long word, probably vertical down column
3. CONSUMER (8 letters)
6. POPULATION (10 letters)
All words match the definitions and are in the word bank.
No contradictions found.
---
Final Answer:
Across:
1. Ecosystem
4. Symbiotic
5. Decomposer
7. Exotic
8. Producer
9. Food chain
10. Niche
Down:
2. Competition
3. Consumer
6. Population
Parent Tip: Review the logic above to help your child master the concept of 5th grade ecosystems printables.
