ACT Vocab Set #1

What is the lowest possible temperature, approximately -273 degrees, called?

• Absolute zero

• Boiling point

• Acceleration

• Alkalinity

What term describes the rate of change of velocity?

• Acceleration

• Acid

• Alloy

• Antigen

Which compound has a pH less than 7?

• Acid

• Alkalinity

• Carbohydrate

• Catalyst

What is a substance composed of two or more metals called?

• Alloy

• Biomass

• Chlorophyll

• Compound

What is the process called where glucose is broken down in the body of an animal to supply muscles with oxygen?

• Aerobic respiration

• Photosynthesis

• Carbohydrate synthesis

• Antigen response

What term describes having a pH greater than 7?

• Alkalinity

• Acid

• Carcinogen

• Compressibility

What is a substance such as a toxin or enzyme that is capable of eliciting an immune response called?

• Antigen

• Catalyst

• Carbohydrate

• Chlorophyll

What are small celestial bodies that revolve around the sun called?

• Asteroids

• Biomass

• Compounds

• Carcinogens

What instrument is used to measure atmospheric pressure?

• Barometer

• Thermometer

• Hygrometer

• Anemometer

What is the total mass of all living matter within a given area called?

• Biomass

• Chlorophyll

• Carbohydrate

• Compound