Matter Review

All matter is made of -

• atoms

• iron

• mixtures

• gold

Which of these is a mixture?

• lemonade

• salt

• water

• sugar

Atom is to molecule as element is to-

• mass

• compound

• solution

• temperature

When ice cream is left out of a freezer, the ice cream changes from a -

• liquid to a gas

• solid to a liquid

• solid to a gas

• gas to a liquid

Atoms are the smallest part of a(n)-

• neutron

• electron

• proton

• element

Which of the following are elements? (more than one)

• water

• carbon

• hydrogen

• oxygen

Which of these will change solid iron to a liquid?

• crushing the solid iron

• adding water to the iron

• raising the air pressure

• increasing its temperature

Hydrogen, oxygen, and helium are examples of=-

• protons

• neutrons

• electrons

• elements

A student observed steam rising from the pot of boiling water. The molecules in the steam are -

• moving very slowly as they rise

• packed tightly and moving a little

• packed tightly and barely moving

• spread apart and moving very fast

Which of these shows how frozen water changes as the temperature of the air increases?

• solid -> liquid -> gas

• liquid -> gas -> solid

• solid -> gas -> liquid

• gas -> liquid -> solid