Vocabulary List - Letter A

A skin disorder characterized by scaly skin, pimples, blackheads, whiteheads, and nodules is called _________.

• Acne

• Psoriasis

• Eczema

• Rosacea

A volcano that erupts or has erupted during the past 10,000 years is called an _________.

• Active volcano

• Dormant volcano

• Extinct volcano

• Shield volcano

A liquid form of a gas is known as _________

• Aerosol

• Vapor

• Foam

• Mist

A minor tremor after the principal shock of an earthquake is called an _________

• Aftershock

• Epicenter

• Magnitude

• Seismograph

An artificial vegetative propagation technique where a stem is slit and enclosed with moist moss is called _________.

• Air layering

• Grafting

• Cutting

• Budding

A substance that causes allergic reactions is called an _________

• Allergen

• Antibody

• Enzyme

• Pathogen

The alternation of sexual and asexual phases in the life cycle of ferns and mosses is called _________.

• Alternation of generations

• Metamorphosis

• Binary fission

• Budding

An air sac in the lung is called _________.

• Alveolus

• Bronchus

• Trachea

• Capillary

A chemical that is made up of hydrogen and nitrogen is called _________.

• Ammonia

• Methane

• Nitric acid

• Hydrogen peroxide

A condition characterized by temporary or permanent memory loss is called _________.

• Amnesia

• Insomnia

• Dementia

• Epilepsy