Matter and Atomic Structure Quiz

What is matter?

• Anything that has mass and occupies space

• A substance that only exists in solids

• A type of energy

• Only objects that are visible

Which of the following is a characteristic of a substance?

• It has a constant composition

• It is a mixture of different elements

• It changes its composition over time

• It cannot be identified by its properties

Which of the following is an example of a mixture?

• Gold

• Water

• Milk

• Oxygen

What type of mixture is air?

• Homogeneous

• Heterogeneous

• Compound

• Element

Which of the following is a characteristic of a homogeneous mixture?

• It has uneven composition

• It is made up of two or more substances

• Its composition is uniform throughout

• It can only be separated chemically

Which of the following cannot be separated by physical means?

• Mixtures

• Elements

• Compounds

• Solutions

What distinguishes a compound from a mixture?

• Compounds can be separated by physical means

• Compounds have a fixed composition, unlike mixtures

• Mixtures are made up of atoms of different elements

• Compounds are made of only one substance

Which state of matter has molecules that are held close together in an orderly fashion?

• Solid

• Liquid

• Gas

• Plasma

What happens to a solid when it is heated?

• It freezes

• It melts into a liquid

• It condenses into a gas

• It changes into a different substance

Which of the following is an intensive property of matter?

• Mass

• Volume

• Density

• Length