Biology
Physics
Chemistry
Earth/Space science
General knowledge
100

What type of blood cells help fight infections?

white blood cells
100

What type of energy is stored in a stretched rubber band?

elastic potential energy

100

What is the simplest type of substance, consisting of only one type of atom?

element

100

Which planet is known as the Red Planet?

Mars
100

What is the largest organ in the human body?

Skin

200

The green pigment in plants that absorbs sunlight for photosynthesis.

Chlorophyll 

200

What is the type of circuit where electricity has only one path to flow?

series 

200

The pH value of a neutral substance like pure water.

7

200

The three main types of rock

igneous, sedimentary, and metamorphic

200

The name of the gas that makes up most of the air we breathe.

Nitrogen

300

What is part of the cell that controls its activities and contains genetic material.

Nucleus

300

The effect of light bouncing off a flat smooth surface

reflection

300

What gas turns limewater cloudy?

carbon dioxide

300

What type of rock is formed from cooled lava?

igneous rock

300

What is the hardest natural substance on Earth?

diamond

400

The process by which organisms break down glucose to release energy.

Respiration

400

What happens to an object's shadow when the light source moves closer?

It gets bigger

400

What is the chemical symbol for helium

He
400

What do we call a large group of stars, dust, and gas held together by gravity?

A galaxy

400

Who painted the Mona Lisa?

Leonardo da Vinci

500

What is the tube that carries air that has been breathed in from the upper end of the throat to the lungs?

windpipe/trachea

500

What is the unit used to measure energy?

joule

500

The scientific term for a solid turning directly into a gas

sublimation

500

What is the name of the imaginary line that runs around the middle of the Earth?

The equator

500

Which mythical creature is celebrated as Scotland’s national animal?

Unicorn