Grade 8 · Science · On Level
Free Science Concepts and Evidence worksheet - version 9
Grade 8 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 8 · On-level practice · 8 questions · Version PG-R4QZ4P-N8EZ
What transfers thermal energy by direct contact?A. Conduction B. They rearrange into new substances C. Speed with direction D. Formation of a new substance
What does Newton's second law relate?A. Total mass is conserved B. Force, mass, and acceleration C. Conduction D. They rearrange into new substances
How is mass affected in a closed-system reaction?A. Force, mass, and acceleration B. Speed with direction C. They rearrange into new substances D. Total mass is conserved
What is evidence of a chemical change?A. Total mass is conserved B. Conduction C. The number of cycles per unit time D. Formation of a new substance
What do like electric charges do?A. Repel B. Conduction C. They rearrange into new substances D. Total mass is conserved
What is a wave's frequency?A. Force, mass, and acceleration B. Total mass is conserved C. The number of cycles per unit time D. Speed with direction
What happens to atoms during a chemical reaction?A. Repel B. They rearrange into new substances C. Force, mass, and acceleration D. The number of cycles per unit time
What is velocity?A. Formation of a new substance B. Force, mass, and acceleration C. Repel D. Speed with direction
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
- What transfers thermal energy by direct contact?Conduction
- What does Newton's second law relate?Force, mass, and acceleration
- How is mass affected in a closed-system reaction?Total mass is conserved
- What is evidence of a chemical change?Formation of a new substance
- What do like electric charges do?Repel
- What is a wave's frequency?The number of cycles per unit time
- What happens to atoms during a chemical reaction?They rearrange into new substances
- What is velocity?Speed with direction
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.