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Chapter 2: The Material World. Chapter 2 Goals. Make a Title Page for Chapter 2. Write the Chapter Goals on the Title Page What are characteristic properties of matter and how are they used to identify matter?
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Chapter 2 Goals • Make a Title Page for Chapter 2. • Write the Chapter Goals on the Title Page • What are characteristic properties of matter and how are they used to identify matter? • What is the underlying structure of matter, and how do the properties we observe relate to this underlying structure? • Update your Table of Contents
Engage: toying with matter • Create a new header/thread “Toying with Matter” • Write the Learning Target: • I can assess my current understanding of density by predicting how objects will interact. • Update your TOC
Engage: Toying with Matter Answer these questions in your notebook! • Read Introduction p. 58 • Wave Toy demonstration • What properties of matter are important to how a wave toy functions? • How do those properties differ among the materials used in the toy? • What do you already know about density, solubility, and reactivity? • What else do you need to learn to understand how the wave toy functions?
Engage: Toying With Matter Answer these questions in your notebook! • Process & Procedure • 1. Study the liquids on the demo table. • A. Are they made of the same matter? • What macroscopic observations lead you to your answer? • What does macroscopic mean? • B. How could you determine if these materials would be right for a wave toy of your own design?
Engage: Toying with Matter • Read your answers to your partner. Discuss similarities and differences in your answers. • Update your notebook with any useful information your partner shared with you.
Engage: Toying with Matter • Demo: Candles and Flasks - Before • Sketch what you see. Label all important parts. • Predict what you think will happen to each candle in sketches. • Under each sketch answer why you think it will happen. • Discuss with your partner and update your notebook with any new information.
Engage: Toying with Matter • Demo: Candles and Flasks - After • Sketch what you see. Label all important parts. • How do your predictions compare with what you see? • Label each sketch with “What I see” (evidence) and “What it means” (inference)
Engage: Toying with Matter • Some helpful definitions: • Mixture: a blend of two or more types of matter, each of which retains its own identity. A mixture can be separated by physical means. • Homogeneous: uniform properties throughout. • Examples of homogeneous mixtures are air, gasoline, salt dissolved in water • Heterogeneous: properties differ in different parts of the mixture • Examples of heterogeneous mixtures are concrete, chicken soup, soil, salt and pepper mixed together
Engage: Toying with Matter • Reflect & Connect p. 61 #1-4 • Make sure these are done for tomorrow – we will be discussing them!