Chemistry
Biology
Physics
Lab work
Miscellaneous
100

What is the chemical symbol for water?

H₂O

100

What is the basic unit of life?

a cell

100

What is the force that pulls objects toward the Earth?

gravity

100

What safety equipment is essential when handling chemicals?

goggles

100

What is the main gas in the Earth's atmosphere?

nitrogen

200

What do you call a substance made of two or more elements chemically bonded together?

a compound

200

What process do plants use to convert sunlight into energy?

photosynthesis

200

What is the term for the energy of motion?

kinetic energy

200

What is the purpose of a Bunsen burner?

to heat substances

200

What is the study of heredity called?

genetics

300

What is the pH level of pure water?

7

300

What is the term for a group of organisms of the same species living in the same area?

a population

300

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

Newton's Third Law of Motion

300

What do you call the process of separating mixtures based on different boiling points?

distillation

300

Who is known as the father of modern physics?

Albert Einstein

400

Which gas is produced during photosynthesis?

oxygen

400

What organ in the human body is responsible for pumping blood?

the heart

400

What unit is used to measure electrical resistance?

an ohm

400

In a scientific experiment, what is the variable that is changed called?

the independent variable

400

What is the scientific method?

a systematic way of investigating phenomena

500

What is the periodic table?

a chart that organizes all known elements

500

What type of macromolecule are enzymes?

proteins

500

What is the speed of light in a vacuum?

299,792 kilometers per second

500

What is the purpose of a control group in an experiment?

to compare against the experimental group

500

What is the name of the first vaccine created by Edward Jenner?

the smallpox vaccine

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