2024 - 2025 Final Exam

Which class are you in?

• Physical Science

• Life Science

• Earth and Space Science

Which property would NOT be used to determine the identity of a pure substance?

• Measuring Density
• Observing Reactivity with Oxygen
• Testing the boiling point compared to known boiling points

A student claims that a mixture can be separated by physical means, but a pure substance cannot. Which evidence from an investigation would best support this claim?

• Salt dissolves in water.
• Sand can be filtered out of water.
• Water boils at 100°C.
• Sugar tastes sweet.

Which diagram shows a mixture?

• A
• B
• C
• D

Which diagram shows a compound?

• A
• B
• C
• D

Which statement best describes a mixture?

• It has a fixed composition.
• It is uniform throughout.
• It cannot be separated.
• It can be separated by physical means

Which state of matter does 'A' represent?

• Solid
• Liquid
• Gas

Which state of matter would C and D represent?

• Solid
• Liquid
• Gas

Which state of matter would be represented by F?

• Solid
• Liquid
• Gas

Was energy added or removed from this system?

• Energy was added; the particles slowed down and moved closer together.
• Energy was removed; the particles slowed down and moved closer together.
• Energy was added; the particles move faster and farther apart.
• Energy was removed; the particles move faster and farther apart.