Matter and Change

What type of mixture is air (with smog) ?

• Homogeneous

• Heterogeneous

What type of mixture is chocolate chip ice cream?

• Homogeneous

• Heterogeneous

Which of the following are pure substances?

• Carbon dioxide (CO₂)

• Milk

• Salt water

• Nitrogen (N₂)

Which of the following are compounds?

• Silver nitrate (AgNO₃)

• Bronze (Cu + Sn)

• Sugar (C₁₂H₂₂O₁₁₎

• Blood

Tags

NGSS.MS-PS1-1

Which of the following is an element?

• Lead metal

• Iron rust

• Aluminum foil

• Silver sulfate

How do you identify a compound?

• Same type of atoms and molecules

• Same type of atoms different type of molecules

• Different type of atoms same type of molecules

• Different type of atoms and molecules

Tags

NGSS.MS-PS1-1

Which of the following are evidences of a chemical change?

• Change of color (unintended)

• Change of shape

• Change of size

• Change of odor

Tags

NGSS.MS-PS1-2

What is the main evidence that a chemical change has occured?

• Change of color

• Production of Bubbles

• Production of Fire

• A new substance is produced

Tags

NGSS.MS-PS1-2

Which of the following are evidences of a physical change?

• Change of size

• Change of color (unintended)

• Change of state of matter

• Change of odor (Unintended)

Tags

NGSS.MS-PS1-4

What is the classification of physical properties?

• Uniform / Non uniform

• Intensive / Extensive

• Independent / Dependent

• There is no classification