USABO // Campbells Biology Chapters
1-5 Exam Actual Questions and
Answers 2026
Polar covalent bonds -
correct answer ✅the electrons of the covalent bonds are closer to
oxygen than to hydrogen
Polar molecule -
correct answer ✅the water overall charge is unevenly distributed
Cohesion -
correct answer ✅the hydrogen bonds hold the substance together
Adhesion -
correct answer ✅the clinging of one substance to another
Surface tension -
correct answer ✅a measure of how difficult it is to stretch or break
the surface of a liquid
Kinetic energy -
correct answer ✅the energy of motion
,USABO // Campbells Biology Chapters
1-5 Exam Actual Questions and
Answers 2026
Thermal energy -
correct answer ✅the kinetic energy associated with the random
movement of atoms or molecules
Temperature -
correct answer ✅a measure of energy that represents average
kinetic energy of molecules in a body of matter
Heat -
correct answer ✅thermal energy in transfer from one body of
matter to another
Calorie -
correct answer ✅the amount of heat it takes to raise the
temperature of 1 g of water by 1 degree Celsius
Kilocalorie (kcal) -
correct answer ✅the quantity of heat required to raise the
temperature of 1 kilogram of water by 1 degree Celsius
,USABO // Campbells Biology Chapters
1-5 Exam Actual Questions and
Answers 2026
Specific heat -
correct answer ✅the amount of heat that must be absorbed or
lost for 1 g of that substance to change its temperature by 1 degree
Celsius
Heat of vaporization -
correct answer ✅the quantity of heat a liquid must absorb for 1 g
of it to be converted from the liquid to the gaseous state
Evaporative cooling -
correct answer ✅as a liquid evaporates the surface of the liquid
that remains behind cools down
Solution -
correct answer ✅a liquid that is a completely homogeneous
mixture of two or more substances
Solvent -
correct answer ✅the dissolving agent of a solution
, USABO // Campbells Biology Chapters
1-5 Exam Actual Questions and
Answers 2026
Solute -
correct answer ✅the substance that is dissolved
Aqueous solution -
correct answer ✅the solute is dissolved in water; water is the
solvant
Hydration shell -
correct answer ✅the sphere of water molecules around each
dissolved ion
Hydrophilic -
correct answer ✅(water loving) any substance that is attracted to
water
Hydrophobic -
correct answer ✅(water fearing) any substance that repels to
water
Hydrogen ion -
correct answer ✅(H+) a single proton with a charge of 1+
1-5 Exam Actual Questions and
Answers 2026
Polar covalent bonds -
correct answer ✅the electrons of the covalent bonds are closer to
oxygen than to hydrogen
Polar molecule -
correct answer ✅the water overall charge is unevenly distributed
Cohesion -
correct answer ✅the hydrogen bonds hold the substance together
Adhesion -
correct answer ✅the clinging of one substance to another
Surface tension -
correct answer ✅a measure of how difficult it is to stretch or break
the surface of a liquid
Kinetic energy -
correct answer ✅the energy of motion
,USABO // Campbells Biology Chapters
1-5 Exam Actual Questions and
Answers 2026
Thermal energy -
correct answer ✅the kinetic energy associated with the random
movement of atoms or molecules
Temperature -
correct answer ✅a measure of energy that represents average
kinetic energy of molecules in a body of matter
Heat -
correct answer ✅thermal energy in transfer from one body of
matter to another
Calorie -
correct answer ✅the amount of heat it takes to raise the
temperature of 1 g of water by 1 degree Celsius
Kilocalorie (kcal) -
correct answer ✅the quantity of heat required to raise the
temperature of 1 kilogram of water by 1 degree Celsius
,USABO // Campbells Biology Chapters
1-5 Exam Actual Questions and
Answers 2026
Specific heat -
correct answer ✅the amount of heat that must be absorbed or
lost for 1 g of that substance to change its temperature by 1 degree
Celsius
Heat of vaporization -
correct answer ✅the quantity of heat a liquid must absorb for 1 g
of it to be converted from the liquid to the gaseous state
Evaporative cooling -
correct answer ✅as a liquid evaporates the surface of the liquid
that remains behind cools down
Solution -
correct answer ✅a liquid that is a completely homogeneous
mixture of two or more substances
Solvent -
correct answer ✅the dissolving agent of a solution
, USABO // Campbells Biology Chapters
1-5 Exam Actual Questions and
Answers 2026
Solute -
correct answer ✅the substance that is dissolved
Aqueous solution -
correct answer ✅the solute is dissolved in water; water is the
solvant
Hydration shell -
correct answer ✅the sphere of water molecules around each
dissolved ion
Hydrophilic -
correct answer ✅(water loving) any substance that is attracted to
water
Hydrophobic -
correct answer ✅(water fearing) any substance that repels to
water
Hydrogen ion -
correct answer ✅(H+) a single proton with a charge of 1+
