Chapter 2 Science - properties of matter

5 Written Questions

1. Combustibility, ability to rust, tarnishing, heat, is a new substance, changing into a different color
2. a change in any physical property of a substance, not in the substance itself.
3. A measure of the amount of matter present in a given volume of a substance.
4. a measure of how much a substance dissolves in a given volume of a liquid
5. Making water safe to drink, separating aluminum cans from steel ones

5 Matching Questions

1. Chemical properties
2. How do you know which characteristics are physical properties?
3. Condensation
4. Melting
5. Does matter change form?

1. a Describes how substances can form new substances
2. b If the property involves changing the substance to a different substance, it is NOT physical.
3. c The process by which a gas changes its state to become a liquid
4. d The process by which a solid becomes a liquid.
5. e Matter always exists as either a solid, liquid or gas, but it can change from one state to another.

5 Multiple Choice Questions

1. Boiling can occur only when a liquid reaches a certain temperature.
   1. Boiling
   2. Freezing point
   3. Melting point
   4. Boiling point
2. The lowest temperature at which a substance begins to melt.
   1. Freezing point
   2. Melting
   3. Boiling point
   4. Melting point
3. Yes! The volume and shape changes NOT the density.
   1. Is density measured the same for solids and liquids?
   2. What is a useful property that can help a substance?
   3. Does the density of the object stay the same, no matter how much of the substance you have?
   4. How can physical properties be used to identify a substance?
4. The change of one substance into another substance
   1. Melting
   2. Chemical change
   3. Physical change
   4. Chemical properties
5. The freezing point of a substance is the same at that substance's melting point. so at that particular temperature, the substance can exist as either a solid or a liquid.
   1. Why is a change in state a physical change, rather than an chemical one?
   2. Describe the movement of molecules in a substance that is at its melting point?
   3. Why can't you identify a substance on the basis of density alone?
   4. What is the relationship between a substance's melting point and freezing point?

5 True/False Questions

1. Example - A glass marble has a volume of 5cm cubed and a mass of 13g. What is the density of the glass? → D= mass/volume - 13g/5cm (cubed)
   D= 2.6g/cm cubed
   It will sink because the density of water is 1.0 g/cm cubed

   True        False

2. What happens to the particles when condensation is occurring? → it melts

   True        False

3. Why can't you identify a substance on the basis of density alone? → mass/volume

   True        False

4. Describe the movement of particles in a liquid as it evaporates → Particles move fast enough to slide past one another

   True        False

5. Signs of a chemical change? → The change of one substance into another substance

   True        False