Properties of Matter

What is a property in the context of material science?

• A way of describing matter by the same characteristic

• A method to create new substances

• A process of changing matter from one phase to another

• A technique to measure the boiling point of a substance

Which of the following is NOT a common property used to investigate matter?

• Color

• Phase

• Reflectivity

• Weight

What happens during a chemical reaction?

• Particles of the materials combine and form new substances

• The materials dissolve in each other without changing

• The materials change phase from solid to liquid

• The materials reflect more light

Which property would you use to differentiate between copper and wood in terms of electricity?

• Electrical conductivity

• Color

• Phase

• Solubility

What is a sign that a chemical reaction has occurred?

• Bubbles are released

• The substance remains unchanged

• The substance dissolves completely

• The substance becomes a solid

How can you tell if a chemical reaction has taken place when mixing two liquids?

• Solids form

• The liquids remain clear

• The liquids separate into layers

• The liquids evaporate

What is the key concept when two substances mix and their particles combine into new forms?

• Chemical reaction

• Physical change

• Phase transition

• Thermal conductivity