Physical Science Test I review

Which of the following is a physical property?

• Combustible (Burnable)

• Effervescence (Creates a gas/bubbles)

• Malleability (Bendable)

• None of these

Which of these is a chemical property

• Luminescence (Creates light)

• Luster (shininess)

• Odor (has a smell)

• None of these

Which of these describes atoms in a gas?

• Atoms are spread far apart, and move around quickly and chaotically

• Atoms are tightly packed, but can still move around and past one another

• Atoms are tightly packed, and can only vibrate in place

• None of these

Which of these describes atoms in a solid?

• Atoms are spread far apart, and move around quickly and chaotically

• Atoms are tightly packed, but can still move around and past one another

• Atoms are tightly packed, and can only vibrate in place

• None of these

Which of these describes atoms in a liquid?

• Atoms are spread far apart, and move around quickly and chaotically

• Atoms are tightly packed, but can still move around and past one another

• Atoms are tightly packed, and can only vibrate in place

• None of these

Chemical Changes only happen as a result of...

• A Chemical Reaction

• A Physical Force

• A judicial investigation

• Chemical changes cannot happen

Physical Changes only happen as a result of...

• A Chemical Reaction

• A Physical Force

• A judicial investigation

• Chemical changes cannot happen

Two unknown substances are mixed. They start to bubble for a few minutes, the mixture changes to an orange color, then form a solid. This is a Chemical Change because... (check all that apply)

• Effervescence (bubbling)

• Color Change

• Phase Change

• None of the above

Which of these are physical changes?

• Cracking open an egg

• Cooking an egg

• Slicing a piece of bread

• Toasting bread in the toaster

• Adding milk to cereal

What is the atomic number for the atom shown?

• 0

• 2

• 4

• 6