Transformations of Matter

What are the three main states of matter?

• solid, liquid, gas

• gas, liquid, crystal

• solid, liquid, plasma

• plasma, vapor, foam

Which state of matter has a definite shape and volume?

• Liquid

• Gas

• Plasma

• Solid

What happens to the particles in a solid when it melts?

• The particles in a solid expand and form a gas immediately.

• The particles in a solid gain energy, vibrate more, and move freely, transitioning into a liquid.

• The particles in a solid lose energy and become stationary.

• The particles in a solid break apart and disappear completely.

Define a chemical change and give an example.

• Boiling water, which is a physical change.

• Dissolving sugar in water, which is a chemical change.

• Burning wood, which produces ash and smoke.

• An example of a chemical change is the rusting of iron, where iron reacts with oxygen and moisture to form iron oxide.

What is the process called when a liquid turns into a gas?

• Condensation

• Sublimation

• Freezing

• Evaporation or Boiling

Which state of matter has particles that are far apart and move freely?

• Liquid

• Gas

• Plasma

• Solid

What is an example of a physical change?

• Breaking a glass bottle

• Melting ice into water

• Dissolving sugar in water

• Boiling water to steam

How can you tell if a chemical change has occurred?

• Formation of bubbles without a reaction

• Indicators of a chemical change include color change, gas production, temperature change, formation of a precipitate, and change in odor.

• Change in state of matter without heat

• Change in mass

What happens to the mass of a substance during a chemical change?

• The mass increases during a chemical change.

• The mass remains constant during a chemical change.

• The mass changes depending on the temperature.

• The mass decreases during a chemical change.

What is the state of matter that has no definite shape but has a definite volume?

• Liquid

• Solid

• Plasma

• Gas