Biology
Astronomy
Chemistry
Earth Science
Physics
100

This pigment gives plants their green color.

What is chlorophyll?

100

This term describes a natural satellite that orbits around a planet.

What is a moon?

100

This type of matter has a definite volume but no definite shape.

What are liquids?

100

This is the general length of time it takes for the Earth to complete one full orbit around the Sun.

What is 365 days?

100

This force resists motion when two objects rub against each other.

What is friction?

200

This is the largest organ in the human body.

What is the skin?

200

This phenomenon sees the moon partially or completely cover the sun.

What is a solar eclipse?

200

These substances control the rates of chemical reactions.

What are catalysts?

200

These geologic formations may be found overhead if you are in a cave.

What are stalactites?

200

An object with a _________ will have a greater gravitational pull.

What is a larger mass?

300

This is the most common element in the human body, making up almost 63% of the average human.

What is Oxygen?

300

Also known by this name, Jupiter's giant, spinning storm is about twice the size of the Earth and can see wind speeds of almost 270 miles per hour.

What is the "Great Red Spot?"

300

This word is used to describe matter that does not enter chemical reactions.

What is "inert?"

300

This is the hardest naturally occurring substance, but it's its interactions with light that have made it one of the most valuable natural substances.

What is diamond?

300

This states that "for every action, there is an equal and opposite reaction."

What is Newton's third law of motion?

400
These organs filter waste materials from the blood and allow for them to be passed out of the body as urine.

What are the kidneys?

400

Titian, Hyperion, Dione, and Phoebe are just a few of this planet's 146 moons.

What is Saturn?

400

This compound's formula is H2SO4.

What is sulfuric acid?

400

This is the layer of the atmosphere in which weather occurs.

What is the troposphere?

400

This force pushes objects apart when they are in close proximity.

What is repulsion?

500
DNA, or this, carries the genetic information for the development and functioning of an organism.

What is deoxyribonucleic acid?

500

This is the closest star to Earth other than our sun.

What is Proxima Centauri?

500

This is the boiling point of water (in Fahrenheit).

What is 212°F?

500

This is the second-largest hot desert in the world.

What is the Arabian Desert?

500

This states that "an object at rest stays at rest, and an object in motion stays in motion."

What is Newton's first law of motion?