Science Round 3

hard10 questions🔬 ScienceAdded 2026-03-10

A challenging science round for teams with a head for physics, chemistry and biology.

  1. 1.What is Avogadro's number (approximately)?

  2. 2.Which subatomic particle has a negative charge?

  3. 3.What is the name of the process by which a solid turns directly into a gas?

  4. 4.Who proposed the three laws of motion?

  5. 5.What is the pH of pure water?

  6. 6.Which organ in the body produces insulin?

  7. 7.What is the chemical formula for table salt?

  8. 8.What type of star is the Sun?

  9. 9.What particle was discovered at CERN in 2012?

  10. 10.What is the half-life of Carbon-14 (approximately)?

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Science and nature rounds cover biology, chemistry, physics, and the natural world. Accessible questions with the occasional tricky teaser.

A brilliant round for teams with doctors, teachers, or enthusiastic David Attenborough fans.