🧠 Science Quiz

Electrons were discovered by J.J. Thomson in 1897 through his cathode ray experiments — they are roughly 1,836 times lighter than a proton.

At higher altitudes where atmospheric pressure is lower, water boils at temperatures below 100°C — on top of Mount Everest, it boils at around 70°C.

Photosynthesis is the primary source of atmospheric oxygen — the process takes place in chloroplasts, where the green pigment chlorophyll captures sunlight.

Carbon's ability to form four stable covalent bonds allows it to build an extraordinary diversity of molecules — scientists have identified over ten million different carbon compounds.

The term 'event horizon' was coined by physicist Wolfgang Rindler in 1956 — the radius of a black hole's event horizon is known as its Schwarzschild radius.

Covalent bonds are the basis of most organic chemistry — the carbon atom's ability to form four covalent bonds makes it uniquely suited to building complex molecules of life.

Half-lives vary enormously between isotopes — carbon-14 has a half-life of about 5,730 years, while some isotopes decay in fractions of a second.

The Meissner effect was discovered in 1933 by Walther Meissner and Robert Ochsenfeld — it causes a magnet to float above a superconductor, a dramatic demonstration of quantum physics.

Chirality is critically important in medicine — the two mirror forms of a drug molecule can have completely different effects in the body.

Yoshinori Ohsumi won the 2016 Nobel Prize in Physiology or Medicine for his work on autophagy — the process is essential for recycling cellular components and fighting infection.