matter

• Which of the following is true about the particle in the Particle Model of Matter?

  Particles are unique to each pure substance
• Which of the following statements best describes the Particle Model of Matter?

  All matter is made up of tiny, invisible particles
• How do the particles in a solid material differ from the particles in a liquid material?

  Solid particles are more closely packed and have less motion.

  Solid particles have a fixed arrangement, while liquid particles are random.
• What can you say about the movement (speed) of the particles of solid, liquid, and gas based on this model?

  Gas particles are the fastest among solids and liquids.
• Which of the following best describes the particle arrangement in a solid?

  Tightly packed, fixed in a crystalline structure
• What do you think is happening in the substance in terms of temperature change?

  The liquid substance was heated and evaporated as gas.
• What happens to the kinetic energy of particles when the temperature increases?

  The kinetic energy increases
• Which real-world example best illustrates the particle arrangement in a gas?

  Steam rising from boiling water
• An increase in object size due to heat is called Thermal Expansion.
• Concrete roads have narrow gaps filled with black asphalt as shown in the picture below. What is the reason for this?

  to allow expansion during hot climates
• Which has a direct relationship with temperature?

  Average kinetic energy (speed) of its particles
• What happens to the particles of a substance during melting?

  Gain energy and move faster
• Which of the following is NOT a factor affecting condensation?

  The color of the surface