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Starter. Directions: Copy the following word problem. Underline the physical properties in the word problem. Circle the element. Use a KWFL chart to calculate the problem. A cube of copper has a mass of 45 grams and takes up a volume of 7 cm 3 . What is the density of the cube of copper?.

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Starter

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  1. Starter • Directions: Copy the following word problem. Underline the physical properties in the word problem. Circle the element. Use a KWFL chart to calculate the problem. A cube of copper has a mass of 45 grams and takes up a volume of 7 cm3. What is the density of the cube of copper?

  2. Phase Changes and Solutions Day 51

  3. Essential Question • What are the phase changes of water?

  4. Learning Target • I can identify phase changes on a heating curve. • I can identify types of solutions.

  5. Explain: Physical or Chemical Property Directions: On the left-side, Copy the following and identify each as a physical or chemical property: • Purple gas • Sodium reacts with water in the air • Phosphorus burns in air • Freezing point 100 K • Brown solid • Boiling point 59°C

  6. Explain: Physical or Chemical Change Directions: On the left-side, Copy the following and identify each as a physical or chemical change: • Making flooring from a tree • Digesting food • A car engine running • Mixing vinegar and baking soda • Melting iron • Making a horseshoe from a steel bar

  7. Teacher Explanation and Student Draws the Phase changing Diagram on the Right. Gas Solid

  8. Explain Directions: Label the following intervals of the graph. With one of the following terms: gas, solid, liquid, liquid to gas, solid to liquid, ice, steam, melting, evaporating. 1. A-B= 2. B-C= 3. C-D= 4. D-E= 5. E-F=

  9. Engage: Solute or Solvent Direction: Which one is the solute (smallest) or solvent (largest). • Salt water= salt(solute) water(solvent) • Sugar water= • A solution of 20% HCl and 80% water= • Chocolate water= • Rubbing Alcohol: 60% alcohol and 40% water=

  10. Explain: Soluble and Insoluble Directions: Which one is soluble or insoluble in water? • Cooking Oil • Sugar • Soup • Dirt • Salt

  11. Explore: Demonstration • Who Am I? Saturated, Unsaturated, Supersaturated Directions: On the left-side, copy the following questions. Answer the questions during the demonstration and after the demo. Analysis Questions: • What is the solute (salt or water)? • What is the solvent (salt or water)? • Which Beaker the cooler one or the warmer one dissolved the salt the longest? • Which Beaker turned into a saturated solution first? Why? • How does temperature affect dissolving a solid in water? • What is unsaturated solution? • What is saturated solution? • What is supersaturated solution?

  12. Explore: Dissolving Sugar Dissolving Sugar Directions: 1. Cut-out the following boxes. 2. Place the following beakers in order from fastest dissolving to slowest dissolving (using tape on one sheet of paper). Remember, temperature has an effect on dissolving a solute in a solvent. 3. Label one of the solutions saturated, unsaturated, and supersaturated

  13. Elaborate: Mind Map • Write a paragraph about any of the following terms: Mixtures, Element and Compound, Solutions using your notes. • Include in your paragraph the vocabulary words and their definitions, facts, and examples. Remember your paragraph cannot have less than seven sentences. • READ: I will read these and they will be a Quiz grade.

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