Matter Unit Pretest

Which is the smallest particle of matter?

• Atom
• Chemical
• Compound
• Photon

All living and nonliving things are made up of a combination of_____________.

• Elements
• Liquids
• Oxygen
• Crystals

The diagram below shows two pure iron magnets.
What is true about these two magnets?

• They contain different types of atoms but the same elements.
• They contain the same types of atoms but different elements.
• They contain the same types of atoms and elements.
• They contain different types of atoms and elements

Matter can be broken down into smaller particles. Which describes what makes up the illustrated piece of matter?

• Sodium and chlorine atoms
• Sodium and chlorine compounds
• Sodium and chlorine electrons
• Sodium and chlorine substances

Two basic properties of the gas phase are?

• a definite shape and a definite volume
• a definite shape but no definite volume
• no definite shape but a definite volume
• no definite shape and no definite volume

Which state of matter is able to take the shape of the container it is in?

• Solid
• Liquid
• Solids and Liquids
• Solids and Gasses

When water is changed from a liquid to a gas, what occurs?

• The atoms lose electrons.
• A new compound is formed.
• Molecules spread farther apart.
• Hydrogen is separated from oxygen.

Food coloring spreads out faster in hot water than in cold water. This is mainly because:

• The water molecules in hot water move more quickly
• The molecules in hot water are larger
• The food coloring molecules are small
• Hot water is less dense

How does 250 mL of water compare to 500 mL of water?

• They have the same melting point but different boiling points.
• They have the same boiling point but different melting points.
• They have the same volume but different densities.
• They have the same density but different volumes.
  

In which situation would the atoms in an object begin to move closer together during a phase change?

• Heat is removed as a gas turns into a liquid.
• Heat is removed as a liquid turns into a gas.
• Heat is added as a solid turns into a gas.
• Heat is added as a liquid turns into a solid.