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Classroom Activities

Chapter 1: Molecules in Motion

Students will experience all five elements of inquiry as they ask questions about M&M’s in water, design and conduct experiments to answer these questions, and develop explanations based on their observations.

  1. Mysterious M&Ms
  2. Racing M&M Colors
  3. Colors Collide or Combine?
  4. Investigating the Line
  5. M&M's in Different Temperatures
  6. M&M's in Different Sugar Solutions

Chapter 2: Physical Properties & Physical Change in Solids

In this chapter, students compare the properties of four different household crystals to the properties of an unknown crystal.

  1. Curious Crystals
  2. Crushing Test
  3. Solubility Test
  4. Recrystallization Test

Chapter 3: Physical Properties & Physical Change in Liquids

Even though different liquids may look similar, they act differently when placed on various surfaces. Students compare the way four known liquids and an unknown liquid bead up, spread out, or absorb into different surfaces.

  1. Look-alike Liquids
  2. Developing Tests to Distinguish Between Similar-Looking Liquids
  3. Using Color to See How Liquids Combine
  4. Using the Combining Test to Identify Unknown Liquids

Chapter 4: Dissolving Solids, Liquids, and Gases

In this chapter, students participate in activities that help them better understand the different factors that affect the solubility of solids, liquids, and gases.

  1. Defining Dissolving
  2. Dissolving a Substance in Different Liquids
  3. Temperature Affects Dissolving
  4. Dissolving Different Liquids in Water
  5. Temperature Affects the Solubility of Gases
  6. A Dissolving Challenge

Chapter 5: Chemical Change

In this chapter, students gain experience with the evidence of chemical change—production of a gas, change in temperature, color change, and formation of a precipitate.

  1. Powder Particulars
  2. Using Chemical Change to Identify an Unknown
  3. Exploring Baking Powder
  4. Change in Temperature—Endothermic Reaction
  5. Production of a Gas—Controlling a Chemical Reaction
  6. Change in Temperature—Exothermic Reaction
  7. Color Changes with Acids and Bases
  8. Neutralizing Acids and Bases
  9. Comparing the Amount of Acid in Different Solutions
  10. Formation of a Precipitate

Chapter 6: States of Matter

In the first activity from this chapter, students consider how heating and cooling affect molecular motion. The subsequent activities extend this idea to explore the relationship between temperature and the state changes of water.

  1. Matter on the Move
  2. Evaporation
  3. Condensation
  4. Exploring Moisture on the Outside of a Cold Cup
  5. Exploring Moisture on the Outside of a Cold Cup (for dry evironments)
  6. From Gas to Liquid to Solid

Chapter 7: Density

In this chapter, students will explore the concept of density through the familiar experiences of sinking and floating.

  1. Defining Density
  2. Comparing the Density of an Object to the Density of Water
  3. Comparing the Density of Different Liquids
  4. Changing the density of a liquid—Adding salt
  5. Changing the density of a liquid—Heating and cooling
  6. Changing the density of an object—Adding material
  7. Changing the density of an object—Changing shape