Grade 8 · Science · On Level
Free Science Concepts and Evidence worksheet - version 1
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-TCNSOH-N8EZ
What is evidence of a chemical change?A. Total mass is conserved B. The number of cycles per unit time C. Speed with direction D. Formation of a new substance
What does Newton's second law relate?A. Force, mass, and acceleration B. Conduction C. Formation of a new substance D. Repel
What happens to atoms during a chemical reaction?A. They rearrange into new substances B. Speed with direction C. Repel D. Conduction
What transfers thermal energy by direct contact?A. Conduction B. Total mass is conserved C. The number of cycles per unit time D. Force, mass, and acceleration
How is mass affected in a closed-system reaction?A. Formation of a new substance B. Total mass is conserved C. The number of cycles per unit time D. They rearrange into new substances
What do like electric charges do?A. Repel B. Speed with direction C. They rearrange into new substances D. The number of cycles per unit time
What is velocity?A. Speed with direction B. Repel C. They rearrange into new substances D. Force, mass, and acceleration
What is a wave's frequency?A. The number of cycles per unit time B. They rearrange into new substances C. Speed with direction D. Force, mass, and acceleration
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 1
- What is evidence of a chemical change?Formation of a new substance
- What does Newton's second law relate?Force, mass, and acceleration
- What happens to atoms during a chemical reaction?They rearrange into new substances
- What transfers thermal energy by direct contact?Conduction
- How is mass affected in a closed-system reaction?Total mass is conserved
- What do like electric charges do?Repel
- What is velocity?Speed with direction
- What is a wave's frequency?The number of cycles per unit time
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.