Understanding Particles of Matter

What are the two competing theories about the nature of matter?

• Matter is solid and matter is liquid

• Matter is continuous and matter is made of tiny particles

• Matter is heavy and matter is light

• Matter is visible and matter is invisible

What does the experiment with potassium permanganate demonstrate?

• Particles of matter are heavy

• Particles of matter are visible

• Particles of matter are very small

• Particles of matter are large

What is the significance of the pink color in the diluted potassium permanganate solution?

• It shows that particles are large

• It demonstrates that particles are heavy

• It proves that water is colored

• It indicates the presence of millions of tiny particles

How does sugar dissolve in water without raising the water level?

• Sugar particles float on water

• Sugar particles evaporate

• Sugar particles occupy spaces between water molecules

• Sugar particles sink to the bottom

What does the experiment with sugar and water demonstrate about particles?

• Particles are immobile

• Particles have spaces between them

• Particles are heavy

• Particles are visible

What is the process called when particles of different types mix together?

• Evaporation

• Sublimation

• Diffusion

• Condensation

What type of energy do moving particles possess?

• Chemical energy

• Potential energy

• Thermal energy

• Kinetic energy

What happens to the smoke from an incense stick in a room?

• It spreads throughout the room

• It falls to the ground

• It stays in one place

• It disappears immediately

Why can't you break a metal spoon easily?

• The particles are too small

• The particles are too light

• The particles attract each other strongly

• The particles are too large

Which of the following substances has weak particle attraction?

• Rock

• Chalk

• Table

• Metal spoon