Science Quiz

What is the process of a liquid turning into a solid called?

• Evaporation

• Freezing

• Sublimation

• Melting

What is the reverse process of condensation?

• Evaporation

• Freezing

• Sublimation

• Melting

What is a closed system?

• A system with no barrier.

• A system that is isolated from its surroundings.

• A system that exchanges freely with its surroundings.

• A system that is open to its surroundings.

What is conserved in all chemical reactions?

• Volume

• Mass

• Temperature

• Color

What is the term for the new substances formed in a chemical reaction?

• Reactants

• Products

• Mixtures

• Compounds

How do atoms behave in a solid?

• They are spread far apart and move freely

• They are tightly packed and vibrate in place

• They are loosely packed and vibrate in place

• They are spread far apart and vibrate in place

What is the state of matter where atoms are spread far apart and move freely?

• Solid

• Liquid

• Gas

• Plasma

What happens during a chemical reaction?

• Atoms disappear

• Atoms rearrange to form new substances

• Atoms become larger

• Atoms change into energy

What is the conservation of mass?

• Mass is created during a chemical reaction

• Mass is destroyed during a chemical reaction

• The total number of atoms stays the same in a chemical reaction

• Atoms lose mass during a chemical reaction

What is a homogeneous mixture?

• A mixture where substances are unevenly mixed

• A mixture where substances are evenly mixed

• A mixture where substances are not mixed at all

• A mixture where substances change into new substances