

Grade 7 · Science · Challenge
Free Science Concepts and Evidence worksheet - version 20
Grade 7 science practice based on published U.S. learning expectations, with reproducible original variations. This printable version includes 8 grade-appropriate questions and a separate answer sheet.
Science Concepts and Evidence
Grade 7 · Stretch challenge · 8 questions · Version PG-W8PGXN-1WPT
Where does photosynthesis occur in plant cells?A. Chloroplasts B. Genes carry instructions that influence traits C. Maintaining stable internal conditions D. An organism that makes its own food
What is homeostasis?A. Heritable traits that improve reproductive success B. Chloroplasts C. Maintaining stable internal conditions D. The cell
What limits population growth?A. Chloroplasts B. Maintaining stable internal conditions C. The cell D. Resources and environmental conditions
What do decomposers do?A. Resources and environmental conditions B. Genes carry instructions that influence traits C. Maintaining stable internal conditions D. Break down dead matter and recycle nutrients
What is the basic unit of life?A. An organism that makes its own food B. The cell C. Genes carry instructions that influence traits D. Maintaining stable internal conditions
What does natural selection favor?A. Genes carry instructions that influence traits B. Heritable traits that improve reproductive success C. Resources and environmental conditions D. Break down dead matter and recycle nutrients
What is a producer?A. Maintaining stable internal conditions B. Genes carry instructions that influence traits C. Chloroplasts D. An organism that makes its own food
How do genes relate to traits?A. Heritable traits that improve reproductive success B. The cell C. Genes carry instructions that influence traits D. Chloroplasts
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 20
- Where does photosynthesis occur in plant cells?Chloroplasts
- What is homeostasis?Maintaining stable internal conditions
- What limits population growth?Resources and environmental conditions
- What do decomposers do?Break down dead matter and recycle nutrients
- What is the basic unit of life?The cell
- What does natural selection favor?Heritable traits that improve reproductive success
- What is a producer?An organism that makes its own food
- How do genes relate to traits?Genes carry instructions that influence traits
Worked example
Read the direction, identify the assessed skill, solve or cite evidence, and check the response.
Common mistake
Using a memorized procedure without checking what the question asks.
Helpful hint
Name the standard skill before answering.