Grade 9 · Science · On Level
Free Science Concepts and Evidence worksheet - version 14
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-NIS7XA-DMI8
What is mitosis used for?A. DNA B. Growth, repair, and asexual cell reproduction C. Mitochondria D. Organisms interacting with each other and their environment
What organelle produces most cellular ATP?A. Mitochondria B. Net movement from higher to lower concentration C. DNA D. Growth, repair, and asexual cell reproduction
What does a dominant allele do in a heterozygote?A. Mitochondria B. Change in inherited population traits over generations C. Organisms interacting with each other and their environment D. It is expressed in the phenotype
What is the role of enzymes?A. Mitochondria B. Change in inherited population traits over generations C. They speed reactions by lowering activation energy D. DNA
What is evolution?A. Mitochondria B. Change in inherited population traits over generations C. Organisms interacting with each other and their environment D. DNA
What molecule stores hereditary information?A. DNA B. They speed reactions by lowering activation energy C. Net movement from higher to lower concentration D. Change in inherited population traits over generations
What is diffusion?A. Change in inherited population traits over generations B. Mitochondria C. Net movement from higher to lower concentration D. DNA
What is an ecosystem?A. It is expressed in the phenotype B. DNA C. Organisms interacting with each other and their environment D. Mitochondria
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 14
- What is mitosis used for?Growth, repair, and asexual cell reproduction
- What organelle produces most cellular ATP?Mitochondria
- What does a dominant allele do in a heterozygote?It is expressed in the phenotype
- What is the role of enzymes?They speed reactions by lowering activation energy
- What is evolution?Change in inherited population traits over generations
- What molecule stores hereditary information?DNA
- What is diffusion?Net movement from higher to lower concentration
- What is an ecosystem?Organisms interacting with each other and their environment
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.