9th Grade Science Quizzes, Questions & Answers

9th Grade

Top Trending Science Quizzes

World's Hardest Science Quiz You'll Ever Take!

Challenge your scientific knowledge with our Hard Science Quiz! Put your expertise to the test and tackle some of the most complex science questions from diverse disciplines. Whether you are a science enthusiast or have a curious...

Questions: 10 | Attempts: 92231 | Last updated: Nov 20, 2025

Sample Question
What kind of small objects compose much of the universe?

Atoms

Dark matter

Anti-matter

None of the above

Grade 9 Science Quiz: Review Key Concepts

Get ready to test your knowledge with our engaging Science Quiz for Grade 9! This detailed quiz is designed to challenge students on key concepts covered in the Grade 9 science curriculum. From biology and chemistry to physics...

Questions: 40 | Attempts: 99376 | Last updated: Jun 10, 2026

Sample Question
When is an atom considered stable?

When it has a full outer valence shell.

When it has the same amount of electrons as protons.

When it has no neutrons.

When it has an odd number of valence electrons.

Science Quiz For Grade 9

Challenge your knowledge and sharpen your skills with this engaging "Science Quiz Class 9" assessment. Designed for students in grade 9, this quiz covers a range of fascinating topics, including biology,...

Questions: 20 | Attempts: 181167 | Last updated: Jun 23, 2025

Sample Question
Distance is a ________________ quantity.

Scalar

Vector

The Big Quiz On General Science

This quiz will help you to prepare for General Science.

Questions: 15 | Attempts: 331 | Last updated: Mar 20, 2025

Sample Question
Who invented the most common bacterial medium?

Irene Levine

Victor Luria

Mike Levine

Salvador Luria

Science Quiz on Atomic Structure and Radioactivity

This assessment focuses on key concepts of atomic structure and radioactivity, evaluating your understanding of elements, isotopes, and radiation types. It is useful for reinforcing knowledge in chemistry and nuclear science,...

Questions: 30 | Attempts: 12 | Last updated: Mar 29, 2026

Sample Question
What is the atomic number of an element?

Number of neutrons

Number of protons

Number of electrons

Mass number

Recent Science Quizzes

Light, Sound Waves & Electromagnetic Spectrum

Questions: 15 | Attempts: 10 | Last updated: Jun 23, 2026

Sample Question
Which of the following correctly defines the relationship between frequency and period of a wave?

Period = Frequency × Wavelength

Period = 1 / Frequency

Frequency = Period × Speed

Period = Frequency²

Chemistry, Physics, Biology & Astronomy Quiz

Questions: 30 | Attempts: 11 | Last updated: Jun 17, 2026

Sample Question
Where are protons and neutrons located in an atom?

In the outer rings

In the nucleus

In the electron shells

In the valence shell

Science Unit Test: Matter, Properties & Safety

Questions: 30 | Attempts: 10 | Last updated: Jun 16, 2026

Sample Question
What does WHMIS stand for?

Workplace Hazardous Materials Information System

World Health Materials Identification System

Workplace Health Management Information System

Warning Hazard Materials Inspection System