Question 1
What is an atom?
Correct Answer:
The smallest particle of an element that still has that element's properties
Question 2
Which particle is found in the nucleus and carries a positive charge?
Correct Answer:
Proton
Question 3
What mainly distinguishes one pure element from another?
Correct Answer:
The number of protons in each atom's nucleus
Question 4
Which example is a molecule?
Correct Answer:
H₂O, two hydrogen atoms bonded to one oxygen atom
Question 5
Students measure the mass of a sealed bag of baking soda and vinegar before and after the reaction. No gas escapes. What should they observe about total mass?
Correct Answer:
Total mass stays the same because mass is conserved in a closed system
Question 1
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Prepare with the CMAS Science Grade 8 Practice Questions - Colorado Measures of Academic Success (CMAS) Science - Grade 8 Exam practice quiz. This question bank includes 100 questions covering energy, mass, light, mainly, and students. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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CMAS Science Grade 8 Practice Questions - Colorado Measures of Academic Success (CMAS) Science - Grade 8 Exam

This practice set contains 100 questions from the matching question bank and focuses on energy, mass, light, mainly, and students. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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