Elements
Compounds and Air Quality, Climate Change
Water
Drugs and Medicine
Food and Nutrition
100

Particles that are positively charged and located inside the nucleus.

What are protons?

100

Regional trends in temperature and rainfall.

What is climate?

100

Compound known as the "universal solvent."

What is water?

100

The biological polymer that carries genetic information in all species.

What is deoxyribonucleic acid (DNA)?

100

A condition caused by a diet lacking in the proper amount of nutrients.

What is malnutrition?

200

A diagram that shows bonding between atoms and lone pairs.

What is a Lewis Dot Structure?

200

A carbon containing compound.

What is an organic compound?

200

The process of removing salt from water.

What is desalination?

200

The type of mutation in the hemoglobin gene that causes sickle cell.

What is a substitution mutation?

200

The process by which unsaturated fats become saturated fats.

What is hydrogenation?

300

The attraction between a hydrogen atom and an electronegative atom.

What is a hydrogen bond?

300

The process by which a substance burns in the presence of oxygen.

What is combustion?

300

The movement of solvent from a solution of lower solute concentration to a solution of higher solute concentration.

What is osmosis?

300

These individuals undeservedly received the Nobel Prize for Rosalind Franklin's work in determining the structure of DNA through X-ray crystallography.

Who are James Watson and Francis Crick?

300

A chain of amino acids linked by peptide bonds that are present in all living organisms.

What is a protein?

400

Elements with the same atomic number but different atomic masses.

What are isotopes?

400

The type of electromagnetic wave absorbed by greenhouse gases.

What is infrared (IR) radiation?

400

A homogenous mixture of two or more pure substances.

What is a solution?

400

A mixture containing equal amounts of each optical isomer.

What is a racemic mixture?

400

A single sugar, such as fructose or glucose.

What is a monosaccharide?

500

An atom with four different groups bonded to it.

What is a chiral atom?

500

A chemical substance that participates in a chemical reaction and influences its rate without undergoing permanent change.

What is a catalyst?

500

An estimate of the volume of fresh water used to produce particular goods and services.

What is a water footprint?

500

A steroid whose function is to regulate metabolism.

What is cortisol?

500

An ester derived from glycerol and three fatty acids.

What is a triglyceride?

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