Biology
Physics
Chemistry
Space
Food Science
100

What is the powerhouse of the cell?

What is the Mitochondrion?

100

What is the force that keeps planets in orbit around the sun?

What is gravity?

100

What is the chemical symbol for water?

What is H2O?

100

What celestial body orbits the Earth?

What is the moon?

100

What mineral is commonly found in table salt?

What is sodium chloride?

200

What organ in the human body is primarily responsible for filtering blood?

What is the kidney?

200

What particle in an atom has a negative charge?

What is an electron?

200

What gas do humans exhale as a byproduct of respiration?

What is carbon dioxide?

200

What planet is known as the "Red Planet"?

What is Mars?

200

What causes bread to rise?

What is yeast?

300

What types of cells carry oxygen through the body?

What are red blood cells?

300

What law states that for every action, there is an equal and opposite reaction?

What is Newton's third law of motion?

300

What element is represented by the symbol 'Na'?

What is sodium?

300

What is the closest star to Earth?

What is the Sun?
300

What is the main ingredient in guacamole?

What is an avocado?

400

What molecule carries genetic information from DNA to the ribosome for protein synthesis?

What is messenger RNA (mRNA)?

400

What is the unit of electrical resistance?

What is the ohm?

400

What is the name of the process where a solid turns directly into a gas?

What is sublimation?

400

What is the name of the galaxy we live in?

What is the Milky Way?

400

What is the name of the process by which yeast converts sugars into alcohol and carbon dioxide?

What is fermentation?

500

What is the term for a symbiotic relationship where one organism benefits and the other is neither helped nor harmed?

What is commensalism?

500

What is the name of the effect that causes light to change direction when it passes through different mediums?

What is refraction?

500

What is the atomic weight of an oxygen atom?

What is 16 u?

500

What is the value of gravity?

What is 9.8 m/s^2?

500

What chemical compound gives spicy peppers their heat?

What is capsaicin?