1. ELICIT: How Do We Describe Matter?

2. EXPLORE: How Do We Classify Matter?

3. INQUIRE: Is There a Model to Explain Differences Between Solids,   Liquids, and Gases?
A. Searching For Evidence Of Tiny Particles
B. Making Inferences About Particles in Solids, Liquids, & Gases
C. Make Sense
D. Apply

4. INQUIRE: What Can We Learn about Properties of Solids, Liquids, and Gases?
A. Investigating the Properties of Solids
B. Investigating the Properties of Liquids
C. Investigating the Properties of Gases
D. Make Sense
E. Apply

5. INQUIRE: Are Some Properties More Important or More Useful to Know than Others?
A. Common Properties of Solid, Liquids, And Gases
B. Exploring Mass and Volume
C. Predicting the Behavior of Matter
D. Make Sense
E. Apply