Matter Test!

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

• packed tightly and moving a little

• moving very slowly as they rise

• spread apart and moving very fast

• packed tightly and barely moving

Water, ice and steam are alike because they-

• look exactly the same

• are the same compound

• feel the same

• have the same shape

A boy is pouring milk for breakfast. The molecules in milk are-

• close and moving freely around each other

• spread very far apart and moving very fast

• spread apart but not moving at all

• packed tightly and barely moving

What causes molecules to move more quickly?

• cold

• food

• water

• heat

When one molecule of sodium combines with one molecule of chlorine to create salt, what is formed?

• SC

• NaCl

• Na2Cl3

• S2Cl2

Identify EACH example that is a solution.

• Fruit smoothie

• Ice cubes floating in water

• Kool-aid

• trail mix

• chocolate syrup and milk to make chocolate milk

Which of the following are examples of compounds (choose ALL the compounds!)

• Salt

• Carbon

• Water

• Helium

• Carbon Dioxide

Which of these will change solid iron to a liquid?

• crushing the solid iron

• adding water to the iron

• raising the air pressure

• increasing the temperature

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

• liquid to a gas

• solid to a gas

• gas to a liquid

• solid to a liquid

What compound is made of hydrogen and oxygen atoms (H2O)?

• Iron

• Helium

• Water

• Gold