Chemistry
Biology
Physics
Earth and Space
100

This molecule makes up 60% of your body and 70% of Earth's surface.

Water

100

These cause Covid-19, as well as other diseases. They are not alive and can’t reproduce outside of a host cell.

Viruses

100

This force pulls objects with mass towards each other, and keeps you on the ground.

Gravity

100

This biome on earth contains animal and plant diversity and contains the most precipitation.

Rainforest

200

This gas makes balloons float, and it is element 2 on the periodic table.

Helium


200

This is the process that plants use to convert sunlight to energy.

Photosynthesis

200

This phenomenon occurs when you rub two objects together and generate heat.

Friction

200

The asteroid belt runs between these two planets.

Mars and Jupiter

300

What are the two types of particles in the nucleus of an atom?

Protons and neutrons

300

This molecule with a double helix structure contains genetic information.

DNA

300

This type of radiation has more energy than visible light, comes from the sun, and is used in hospitals.

X-rays

300

These sheets of the Earth’s crust cause earthquakes when they move.

Tectonic plates

400

This group of gases rarely reacts or bonds with other elements because their outer electron shell is full.

Noble gases (or group 18)

400

Amino acids combine to form this macromolecule.

Protein

400

This object can be used to prove the Earth’s rotation, and consists of a weight suspended from a pivot.

Pendulum

400

This “ice giant” planet rotates on a steep tilt.

Uranus

500

This is the term for an atom which has lost or gained an electron, which gives it a positive or negative charge.

Ion

500

These organs contain alveoli and are important part of the respiratory system.

Lungs

500

This law states that “every action has an equal and opposite reaction.”

Newton's 3rd Law

500

This planet has a rotating hexagonal storm at its north pole.

Saturn