Grade 8 · Science · On Level
Free Science Concepts and Evidence worksheet - version 14
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-L8CISF-N8EZ
What is velocity?A. They rearrange into new substances B. Conduction C. Speed with direction D. Force, mass, and acceleration
What is a wave's frequency?A. They rearrange into new substances B. Speed with direction C. The number of cycles per unit time D. Force, mass, and acceleration
What does Newton's second law relate?A. Formation of a new substance B. Force, mass, and acceleration C. Repel D. Speed with direction
How is mass affected in a closed-system reaction?A. They rearrange into new substances B. Formation of a new substance C. Conduction D. Total mass is conserved
What do like electric charges do?A. Repel B. Force, mass, and acceleration C. Speed with direction D. The number of cycles per unit time
What transfers thermal energy by direct contact?A. Force, mass, and acceleration B. Speed with direction C. Formation of a new substance D. Conduction
What happens to atoms during a chemical reaction?A. Force, mass, and acceleration B. Speed with direction C. Repel D. They rearrange into new substances
What is evidence of a chemical change?A. Speed with direction B. Formation of a new substance C. They rearrange into new substances D. Conduction
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 velocity?Speed with direction
- What is a wave's frequency?The number of cycles per unit time
- 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 do like electric charges do?Repel
- What transfers thermal energy by direct contact?Conduction
- What happens to atoms during a chemical reaction?They rearrange into new substances
- What is evidence of a chemical change?Formation of a new substance
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.