Science Quizzes & Trivia

Test your knowledge of science facts and applications through our awesome online science quizzes! Enhance your knowledge or learn something completely new by answering science quiz questions based on biology, chemistry, physiology, astronomy and more.

You think you won the science contest in your school; you can crush every science quiz? I challenge you to take on the world with this quiz, well, only if you can. All the best in the world's hardest science quiz you may have...

Questions: 13  |  Attempts: 13423   |  Last updated: Apr 17, 2020
  • Sample Question
    How did the dinosaurs die out?

In today's era, every single child is curious by nature.  Nowadays, Children questions more to satiate their hunger for knowledge and who believe in scientific facts for every phenomenon occurring around their...

Questions: 20  |  Attempts: 10723   |  Last updated: Sep 25, 2019
  • Sample Question
    Squirrel monkey is a type of __________?

Are you ready for a pop quiz? That’s right! In the following questionnaire, we’ll be looking at one of the essential studies in human history – science! We’ll be looking at the core three topics that...

Questions: 10  |  Attempts: 8999   |  Last updated: Dec 2, 2019
  • Sample Question
    Why a man sitting in a moving bus suddenly moves forward when the bus suddenly stops?

Science is a fun subject and gives us a clear understanding of the universe and what exists on and in it. When a new discovery is made it opens people to new knowledge. Take up the exciting quiz below and see how...

Questions: 6  |  Attempts: 8417   |  Last updated: Mar 18, 2020
  • Sample Question
    Scientists have found only 2 substances in the whole universe. What are they?

Welcome to the ultimate Key Stage 3 (KS3) Science. It's a perfect practice test for students in Year 7, Year 8, and Year 9. With over 30 questions, it covers the fundamental topics of science. So, if you are interested in...

Questions: 30  |  Attempts: 6883   |  Last updated: Apr 13, 2020
  • Sample Question
    What is the word equation for respiration ?

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Science Questions & Answers


What is osmosis?
Osmosis is the net movement of solvent or diffusion of water through a semipermeable membrane such as a living cell into a region of higher solute concentration in a way that the solutes are equalized on the concentration of both sides. Osmosis is a
Why would dissolving salt in water be considered a physical change?
Dissolving salt in water is considered a physical change because there’s only a change in the state of matter but no change in the chemical composition of matter. Bear in mind that physical change is defined as a change affecting the form of a
Is health a part of science?
Yes, health is definitely a part of science. Science is a particular discipline or branch of learning, especially one that deals with measurable or systematic principles rather than intuition or natural ability. The science of health is known as heal
How many weeks are there in a year?
The correct answer is 52. There are approximately 52 weeks in a year. A week is any period of seven consecutive days. It begins with either Sunday or Monday. A month is usually subdivided into Weeks. A year, whether leap year or regular year has 12 m
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