You will observe granules of sugar, salt, and pepper under a magnifying glass (if available, if not some Android phones also have a magnifying glass feature, but you need to turn it on for it to work. To turn on the magnifying glass, go to Settings, then Accessibility, then Vision, then Magnification and turn it on. When you need to use the magnifying glass, go to the camera app and tap the screen three times.), and observe the similarities and differences between these common materials. Guide questions for students: • Can you see the difference between the sugar and salt granules? Can you see the different angles? • Are there angles in the pepper? Does it look crystalline? Questions: 1. Which of the substances appears to be made of crystals? 2. Defend your answer with evidence from your observation. What did you use to help you decide which are crystals, and which are not?
You will observe granules of sugar, salt, and pepper under a magnifying glass (if available, if not some Android phones also have a magnifying glass feature, but you need to turn it on for it to work. To turn on the magnifying glass, go to Settings, then Accessibility, then Vision, then Magnification and turn it on. When you need to use the magnifying glass, go to the camera app and tap the screen three times.), and observe the similarities and differences between these common materials.
Guide questions for students:
• Can you see the difference between the sugar and salt granules? Can you see the different angles?
• Are there angles in the pepper? Does it look crystalline?
Questions:
1. Which of the substances appears to be made of crystals?
2. Defend your answer with evidence from your observation. What did you use to help you decide which are crystals, and which are not?
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