The Ultimate Science Challenge: Test Your Knowledge!

Vitamin C

Lemons contain about 50 milligrams of vitamin C, which is over half the amount of vitamin C needed in your daily diet. Vitamin C is an antioxidant, which helps protect cells from damage. Vitamin C also helps your body make collagen for your skin, helps your body absorb iron, and supports your immune system.

Milky Way

We call our galaxy the Milky Way because it appeared to ancient observers to be a milky band of light – like a cosmic roadway – stretching across the dark sky.

Stapes

The stapes is the smallest bone in the human body.

Nitrogen

The most abundant naturally occurring gas is nitrogen (N2), which makes up about 78% of air. Oxygen (O2) is the second most abundant gas at about 21%. The inert gas argon (Ar) is the third most abundant gas at 0.93%.

Turing Test

The Turing Test is a method of inquiry in artificial intelligence (AI) for determining whether or not a computer is capable of thinking like a human being. The test is named after Alan Turing, the founder of the Turing Test and an English computer scientist, cryptanalyst, mathematician and theoretical biologist.

Gas

Neon lights consist of a glass tube with a small amount of neon gas.

Alessandro volta

The first battery was invented by the Italian physicist Alessandro Volta in 1800. Volta stacked discs of copper (Cu) and zinc (Zn) separated by cloth soaked in salty water.

Cube

A tesseract is the four-dimensional analogue of the cube; the tesseract is to the cube as the cube is to the square.

Protons

The atomic number uniquely identifies a chemical element. For example, all helium atoms have two protons, and no other element has an atom with two protons.

Ethylene

Ethylene is a gas and is known as the “fruit-ripening hormone.” Every fruit has a certain level of ethylene production throughout its lifecycle. However, in some fruits, ethylene levels shoot up when the fruit starts ripening.