Chapter 1, Lesson 1 Multimedia
Particles of a Liquid
- The little spheres represent water molecules.
- Molecules are in constant motion.
- The attractions water molecules have for each other keep them close together.
- They can move past each other but their attractions keep them from moving far apart from each other.
- The circles in this drawing represent water molecules.
- They are not in any exact order, but are near each other because of their attractions.
- The motion lines near some of the circles show that the molecules are in motion.
- 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
- Lesson 12: Natural Resources & Synthetic Materials