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Matter and Its Changes

Matter and Its Changes. notes. Only write the question and answer. You do not have to draw the chart. Which material has a density less than 1.3 grams per milliliter? a. Gravel rock b. Hydrogen peroxide c. Water d. Aluminum

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Matter and Its Changes

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  1. Matter and Its Changes notes

  2. Only write the question and answer. You do not have to draw the chart. Which material has a density less than 1.3 grams per milliliter? a. Gravel rock b. Hydrogen peroxide c. Water d. Aluminum Which two substances are similar in their state at room temperature and their reaction with light? a. Aluminum and hydrogen peroxide b. Water and hydrogen peroxide c. Water and aluminum d. Gravel rock and aluminum

  3. Properties of matter- bellringer Please draw and complete the following chart. Refer to chart at top of p. 84 in your text if needed.

  4. Properties of matter-answer Please draw and complete the following chart. Refer to chart at top of p. 84 in your text if needed. Answers below. Answers may vary.

  5. BELLRINGER- 11-17-08 You only have to copy and write question 2 but please answer both questions. 1. Mercury oxide is heated, undergoes a chemical reaction, and changes into mercury and oxygen. The mercury oxide had a mass of 216 grams before the reaction. After the reaction the mass of the mercury alone is 200 grams. According to the law of conservation of mass, what mass of oxygen is there after the chemical reaction? A 0 grams B 16 grams C 216 grams D 200 grams 2. The metal titanium reacts less to oxygen than most metals do. This is a ________________. A chemical property B physical property C physical change D change of state of matter

  6. Density

  7. Please write question and answer. 1. Which state of matter is represented by the particles in the jar labeled C? A) liquid B) plasma C) solid D) gas 2. If the material in the jars are all a form of H2O (or water), which might be a temperature for jar B? A) -5°C B) 15°C C) 105°C D) 215°C

  8. 1. Which material could have a volume of 0.75 cm3 and a mass of 14.5 g? A) aluminum (Al) B) platinum (Pt) C) tin (Sn) D) gold (Au)2. According to the chart below, which of these materials has a greater mass for a volume of 100 cm3? A) copper (Cu) B) lead (Pb) C) iron (Fe) D) magnesium (Mg)

  9. What is matter? • Anything that has mass and takes up space • Yes or no • Air • Light • Noise • Sunlight • Person

  10. Physical property • Any characteristic of a material that can be observed or measured without changing the identity of the material

  11. Make a foldable “Physical properties” • 8 slits • Mass – add this today • Volume – add this today • Density • Boiling point • Melting point • Color, shape, size • State of matter

  12. Matter and Its Changes Measurements

  13. Bellringers 11/18/09Please write the questions and correct answer 1. Which object would have the greatest mass? A. Balloon B. feather C. baseball D. pencil 2. Which object would have the least volume? A. balloon B. ring C. baseball D. pencil

  14. Review During the previous classes, we learned about matter. Not all things are classified as matter. Light, sound, and emotions are not matter. Matter must have mass and take up space. We have learned that matter can be described using physical properties. Physical properties can be observed or measured without changing the identity of the substance. We have briefly looked at how to obtain mass and volume using instruments and tools. We learned that the volume of an object can be obtained by either displacing water or by measuring length times width times height.

  15. Preview Today we will be relating how measurements are used to describe matter. Measurements such as mass, volume, and density are used to differentiate matter. Measurements are physical properties.   Hook: Students will be shown a beaker with three different liquids. This will be shaken. Why do these liquids separate into layers? The liquids have different densities.   Students will be shown two tennis balls which look the same. However, they will realize that one is much heavier than the other.

  16. Mass and volume Mass – amount of material in an object Use a scale (weight in grams) Volume – amount of space an object takes up Use a ruler to find length x width x height in cm Use a beaker to find out how much water is displaced (ml or cc; cm³)

  17. Density Density – the amount of mass per volume Formula Density = mass / volume OR d = m/v

  18. Video clip http://www.brainpop.com/science/matterandchemistry/measuringmatter/ “Measuring matter”

  19. Practice density BrainPOP graphic organizer and “Use the formula” worksheet(s)

  20. Model density • 1. Obtain the mass on the scale • 2. Determine how you will obtain the volume Ask yourself: will it be by placing the object in water OR by measuring length x width X height

  21. Hands-on density practice Find the density of the rock

  22. Formative assessment 1. What is the correct formula to obtain density? A. Mass / volume B. Volume / mass C. Density / volume D. None of the above 2. What object would have the greatest density? A. Balloon B. Bowling ball C. Kickball 3. What is the density of a ball that has a mass of 40 grams and a volume of 10 cm³? A. 1 g / 4 cm³ B. 1 cm³ / 4 g C. 4 g / cm³

  23. BrainPOP: Measuring matter • http://www.brainpop.com/science/matterandchemistry/measuringmatter/

  24. Metal properties • Luster-does it shine? • Malleability- can be hammered into thin sheets • Ductility- can be drawn into wire • Magnetism- attracted to a magnet

  25. Metal video • http://www.brainpop.com/science/matterandchemistry/metals/ • “Metals”

  26. Give examples of objects in the classroom and not found in the classroom that have a metallic luster

  27. Bellringer- 11/30/09 • Match the following properties with their descriptions: • 1. luster A. Wiring in a house • 2. malleable B. Paper clip picked up by • 3. ductile a magnet • 4. magnetism C. Aluminum foil is a thin sheet • D. A shiny penny

  28. Boiling point vs. Melting point • Boiling point – temperature that a liquid boils to gas Water = 100˚ C or above (212˚F) • Melting point – temperature that a solid melts into a liquid Water = 0˚ C or above (32 ˚F) • Freezing point – temperature that a liquid freezes into a solid Water = 0˚ C or below (32 ˚F) • Each of these temps are different for different materials

  29. Boiling and melting point • Worksheets go with following movie • http://player.discoveryeducation.com/index.cfm?guidAssetId=CCAD037E-5E2D-4AC3-9929-090E6277C929 • http://player.discoveryeducation.com/index.cfm?guidAssetId=EFEEEC91-C1CA-440B-BDEF-E1772DE5C8E9&blnFromSearch=1&productcode=US • http://player.discoveryeducation.com/index.cfm?guidAssetId=EFEEEC91-C1CA-440B-BDEF-E1772DE5C8E9&blnFromSearch=1&productcode=US • http://player.discoveryeducation.com/index.cfm?guidAssetId=ABCBCDEB-F646-45A7-AA8A-53A0DCD5F66B&blnFromSearch=1&productcode=US • “Melting and vaporization” • http://player.discoveryeducation.com/index.cfm?guidAssetId=ABCBCDEB-F646-45A7-AA8A-53A0DCD5F66B&blnFromSearch=1&productcode=US • “Freezing and condensation”

  30. Bellringer - write question and answer • When a balloon bursts, most of the air escapes and the balloon shrinks. What happens to the balloon? A) The volume of the balloon decreases. B) The mass of the balloon increases. C) The mass of the balloon decreases. D) The volume of the balloon increases. 2. The melting point of lead is 327.5°C. Which of the following could describe lead? A) gas at 280°C B) liquid at 310°C C) solid at 380°C D) solid at 310°C

  31. Density-bellringer 12-1-09

  32. States of matter-examples • gas • Liquid • Solid • Plasma- highest temperature and energy movement Ex. lightning strikes, atmosphere, and fluorescent bulbs

  33. States of matter • Draw each one below • How would you describe each of these? (Notice their differences) • Infer which is solid, gas, and liquid

  34. States of matter notesfill out the chart with a description from below • Movement energy: lots, some, almost none • Shape and volume: no shape and volume; no; fixed • Particles: packed close; spread far apart; fairly close • Temperature: highest, lowest, between gas and solid

  35. States of matter notes

  36. BrainPOP: States of matter • http://www.brainpop.com/science/matterandchemistry/statesofmatter/ • “States of matter”

  37. BrainPOP: Matter changing states • http://www.brainpop.com/science/matterandchemistry/matterchangingstates/ • “Matter changing states”

  38. States of matter- activity • http://www.collaborativelearning.org/statesofmatter.pdf • Collecting cards

  39. Using physical properties • Create an “I spy” game to find different objects in the classroom • Use specific physical properties

  40. Chemical properties • Flammability • Reacts to another substance (oxygen, water, vinegar, etc. ) • Reacts to light, electricity, heat, etc.

  41. Physical change • The physical property may change BUT what the substance is does not change • http://www.saskschools.ca/curr_content/science9/chemistry/lesson8b.html

  42. Chemical change • http://www.saskschools.ca/curr_content/science9/chemistry/lesson8a.html

  43. BrainPOP: Physical and chemical changes • http://www.brainpop.com/science/matterandchemistry/propertychanges/ • “Property changes”

  44. Compare physical and chemical changes

  45. Physical vs. chemical • Physical change-Matter has changed shape, form, or size • Chemical change- one substance has changed into another

  46. Signs of a change • Chemical-gas bubbles; production of heat, light, or smoke; change in color, and sound

  47. Lab activity: Evidence of chemical change • Baking soda, calcium chloride, water • Cornstarch, water, iodine • Epsom salts, washing soda, and water • Copper penny, salt, and vinegar

  48. http://player.discoveryeducation.com/index.cfm?guidAssetId=B9606969-63C0-4A59-B941-31FDA0602589&blnFromSearch=1&productcode=UShttp://player.discoveryeducation.com/index.cfm?guidAssetId=B9606969-63C0-4A59-B941-31FDA0602589&blnFromSearch=1&productcode=US • Physical Science Series: Properties of Matter • A Segment of: Physical Science Series: Properties of Matter

  49. http://www.miamisci.org/af/sln/phases/copperliquid.html • webquest

  50. Physical change • The physical property may change BUT what the substance it is does not change

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