FIRE AND ICE. Click below to watch a you tube video demo IDjuGI Watch your teacher perform some magic WATCH A DEMO ABOUT THE EFFECTS.

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Presentation transcript:

FIRE AND ICE

Click below to watch a you tube video demo IDjuGI Watch your teacher perform some magic WATCH A DEMO ABOUT THE EFFECTS OF HEAT ON STEEL… OR

EVIDENCEINFERENCE WHAT JUST HAPPENED?

Watch a demo with styrofoam spheres in a cage. Notice how they expand when energy is added. Draw this explanation in your notebook. HOW COME, HUH?

Click below to watch a you tube video demo Ikwojk Watch your teacher perform some magic WATCH A DEMO ABOUT BIMETALLIC EXPANSION RATES… OR

EVIDENCEINFERENCE WHAT JUST HAPPENED?

Click below for an explanation about thermostats. qil5Om-0 Write the explanation in your own words or draw a diagram in your notebook. SO HOW DOES THIS AFFECT MY LIFE?

Ew Write Evidence and Inference for Each Example EVERYDAY USES OF THERMAL EXPANSION

Click below to watch a you tube video demo uJZAFs Watch your teacher perform some magic EFFECTS OF TAKING AWAY ENERGY… OR

Click below to watch a you tube video demo (19 min) MORE “COOL” DEMOS WITH LIQUID NITROGEN…

Which of these forms of technology measure molecular motion of substances? a.Telescope b. Stethoscope c. Microscope d. Thermometer QUICK QUIZ QUESTION 1

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

Why do engineers design and build railroad tracks with a gap between the metal rails? a.The summer heat will make the rails expand and buckle. b. The summer heat will make the rails contract. c.The winter cold will make the rails expand and buckle. d. The winter cold will make the rails contract. QUICK QUIZ QUESTION 3

Why does hot water make it easier to remove a lid on a jar? a.The metal particles melt in the hot water. b. The metal particles move closer together in the hot water. c.The metal particles move apart in the hot water. d. The particles do not move, but the water lubricated the lid. QUICK QUIZ QUESTION 4