Grade 9 · Science · On Level
Free Science Concepts and Evidence worksheet - version 11
Grade 9 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 9 · On-level practice · 8 questions · Version PG-OWQ8E5-DMI8
What is evolution?A. Mitochondria B. DNA C. Change in inherited population traits over generations D. Growth, repair, and asexual cell reproduction
What molecule stores hereditary information?A. It is expressed in the phenotype B. Growth, repair, and asexual cell reproduction C. Change in inherited population traits over generations D. DNA
What does a dominant allele do in a heterozygote?A. Change in inherited population traits over generations B. DNA C. Mitochondria D. It is expressed in the phenotype
What is an ecosystem?A. Organisms interacting with each other and their environment B. Change in inherited population traits over generations C. They speed reactions by lowering activation energy D. It is expressed in the phenotype
What organelle produces most cellular ATP?A. Organisms interacting with each other and their environment B. DNA C. Mitochondria D. Growth, repair, and asexual cell reproduction
What is diffusion?A. Net movement from higher to lower concentration B. Mitochondria C. They speed reactions by lowering activation energy D. DNA
What is mitosis used for?A. Mitochondria B. Growth, repair, and asexual cell reproduction C. They speed reactions by lowering activation energy D. Organisms interacting with each other and their environment
What is the role of enzymes?A. DNA B. Net movement from higher to lower concentration C. Change in inherited population traits over generations D. They speed reactions by lowering activation energy
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 11
- What is evolution?Change in inherited population traits over generations
- What molecule stores hereditary information?DNA
- What does a dominant allele do in a heterozygote?It is expressed in the phenotype
- What is an ecosystem?Organisms interacting with each other and their environment
- What organelle produces most cellular ATP?Mitochondria
- What is diffusion?Net movement from higher to lower concentration
- What is mitosis used for?Growth, repair, and asexual cell reproduction
- What is the role of enzymes?They speed reactions by lowering activation energy
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.