Chapter 1, Lesson 3 Multimedia
Heating and Cooling a Thermometer
- When the thermometer is cooled, the molecules move more slowly, get closer together, and move down in the tube.
- When the thermometer is heated, the molecules move faster, get slightly further apart, and move up in the tube.
Molecules in a Thermometer
- The molecules of the thermometer in hot water should be randomly arranged, slightly further apart, moving faster.
- The molecules of the thermometer in cold water should be randomly arranged, closer together, moving slower.
Different Thermometers, Same Temperature
- If the temperatures are the same, why are the liquids in the two thermometers at different heights?
- Lesson 1: Water is a Polar Molecule
- Lesson 2: Surface Tension
- Lesson 3: Why Does Water Dissolve Salt?
- Lesson 4: Why Does Water Dissolve Sugar?
- Lesson 5: Using Dissolving to Identify an Unknown
- Lesson 6: Does Temperature Affect Dissolving?
- Lesson 7: Can Liquids Dissolve in Water?
- Lesson 8: Can Gases Dissolve in Water?
- Lesson 9: Temperature Changes Dissolving
- Lesson 1: What is a Chemical Reaction?
- Lesson 2: Controlling the Amount of Products in a Chemical Reaction
- Lesson 3: Forming a Precipitate
- Lesson 4: Temperature and the Rate of a Chemical Reaction
- Lesson 5: A Catalyst and the Rate of Reaction
- Lesson 7: Energy Changes in Chemical Reactions
- Lesson 8: pH and Color Change
- Lesson 9: Neutralizing Acids and Bases
- Lesson 10: Carbon Dioxide Can Make a Solution Acidic