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Fire and Ice

Fire and Ice. Watch a demo about the effects of heat on steel…. Click below to watch a you tube video demo http://youtu.be/hX2Y2IDjuGI. Watch your teacher perform some magic . OR. What just happened?. INFERENCE. EVIDENCE. How Come, huh?.

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Fire and Ice

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  1. Fire and Ice

  2. Watch a demo about the effects of heat on steel… • Click below to watch a you tube video demo • http://youtu.be/hX2Y2IDjuGI • Watch your teacher perform some magic  OR

  3. What just happened? • INFERENCE • EVIDENCE

  4. How Come, huh? • Draw this explanation in your notebook. • Watch a demo with styrofoam spheres in a cage. • Notice how they expand when energy is added.

  5. Watch a demo about Bimetallic expansion rates… • Click below to watch a you tube video demo • http://youtu.be/BQaUTIkwojk • Watch your teacher perform some magic  OR

  6. What just happened? • INFERENCE • EVIDENCE

  7. So how does this affect my life? • Write the explanation in your own words or draw a diagram in your notebook. • Click below for an explanation about thermostats. • http://youtu.be/29tqil5Om-0

  8. Everyday Uses of Thermal Expansion • Write Evidence and Inference for Each Example • http://youtu.be/4UE_cxd7TEw

  9. Effects of taking away energy… • Click below to watch a you tube video demo • http://youtu.be/ZgTTUuJZAFs • Watch your teacher perform some magic  OR

  10. More “cool” demos with liquid nitrogen… • Click below to watch a you tube video demo (19 min) • http://youtu.be/enEtTV-FyCU

  11. Quick Quiz Question 1 • Telescope • b. Stethoscope • c. Microscope • d. Thermometer • Which of these forms of technology measure molecular motion of substances?

  12. Quick Quiz Question 2 • The particles get closer together as the gas expands. • b. The molecules bond together so they take up less space. • The size of the molecules is reduced as the gas contracts. • d. The particles get closer together as the gas contracts. • Why does the volume of a gas decrease if heat energy is removed?

  13. Quick Quiz Question 3 • The summer heat will make the rails expand and buckle. • b. The summer heat will make the rails contract . • The winter cold will make the rails expand and buckle. • d. The winter cold will make the rails contract. • Why do engineers design and build railroad tracks with a gap between the metal rails?

  14. Quick Quiz Question 4 • The metal particles melt in the hot water. • b. The metal particles move closer together in the hot water. • The metal particles move apart in the hot water. • d. The particles do not move, but the water lubricated the lid. • Why does hot water make it easier to remove a lid on a jar?

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