Particle Theory and Physical Properties Quiz

Which statement best describes the particle theory of matter?

• All matter is made of tiny particles that are always moving.

• All matter is made of large solid pieces.

• Only gases have particles.

• Particles in matter never move.

According to the particle theory, what happens when a substance is heated?

• The particles stop moving.

• The particles move faster.

• The particles disappear.

• The particles get bigger.

What is a pure substance?

• A mixture of two elements.

• Something that has only one kind of particle.

• A substance that looks clean.

• Any solid material.

Which of the following is a pure substance?

• Air

• Salt (NaCl)

• Orange juice

• Soil

What is a mixture?

• A substance made of only one kind of particle.

• A combination of two or more substances that can be separated.

• Something that cannot change.

• A chemical reaction between two elements.

Which of the following is a heterogeneous mixture?

• Salt water

• Apple juice

• Salad

• Vinegar

Which of the following is a homogeneous mixture?

• Oil and water

• Chocolate chip cookie

• Air

• Sand and salt

Which is a qualitative physical property?

• Mass

• Colour

• Volume

• Density

Which is a quantitative physical property?

• Texture

• Smell

• Temperature

• Colour

Which of the following is a physical property?

• Flammability

• Melting point

• Reactivity with acid

• Ability to rust