Grade 1 · Science · Building Confidence
Free Life Science & Ecosystems worksheet - version 9
Grade 1 life science & ecosystems practice with original, difficulty-matched questions. This printable version includes 8 grade-appropriate questions and a separate answer sheet.
Life Science & Ecosystems
Grade 1 · Building confidence · 8 questions · Version PG-194A68M-4E3Q
1.Explain “ecosystem” in your own words.
2.Explain “food chain” in your own words.
3.Explain “consumer” in your own words.
4.Explain “decomposer” in your own words.
5.Explain “habitat” in your own words.
6.Explain “producer” in your own words.
7.Explain “inherited trait” in your own words.
8.Explain “adaptation” in your own words.
Answers and teaching notes
Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.
Show answers for version 9
- Explain “ecosystem” in your own words.living and nonliving things interacting in an area
- Explain “food chain” in your own words.a sequence showing how energy moves between organisms
- Explain “consumer” in your own words.an organism that gets energy by eating others
- Explain “decomposer” in your own words.an organism that breaks down dead material
- Explain “habitat” in your own words.the place where an organism lives
- Explain “producer” in your own words.an organism that makes its own food
- Explain “inherited trait” in your own words.a characteristic passed from parents to offspring
- Explain “adaptation” in your own words.a trait or behavior that helps survival
Worked example
Connect structures and behaviors to survival, growth, reproduction, and energy flow.
Common mistake
Describing a trait without explaining its function.
Helpful hint
Ask how the feature affects survival or reproduction.