PRESS 04/23

GET YOUR NOTEBOOK

TODAY‘S EQ:

DESCRIBE THE MOVEMENT OF THE MOLECULES DURING CONDUCTION.

CREATE IN NOTEBOOKA-B (118) C-D (130)

ON PAGE A-B (117) C-D (129)

•DRAW DIAGRAMS (PICTURES) THAT SHOW HOW MOLECULES MOVE IN EACH OF THE THREE HEAT TRANSFER PROCESSES

CONDUCTION CONVECTION RADIATION

WHERE IS ALL THIS INFORMATION?

•JCMS HOMEPAGE•TEAM 3 BROWN•LINKS THAT SAY HEAT TRANSFER OR CONDUCTION, RADIATION, CONVECTION

LAB – SAME PAGE AS MOLECULE DRAWINGS

•CHALLENGE – CREATE A LAYER OF RED WATER AND A LAYER OF BLUE WATER IN YOUR VIAL OF PLAIN WATER.

• PREDICTION – PREDICT AND DRAW THE ORDER OF LAYERS IN A SUCCESSFULLY LAYERED VIAL

CONDUCT THE INVESTIGATION – DRAW AND LABEL YOUR SUCCESSFUL LAYERS

EXIT SLIP – DENSITY IS MASS/VOLUME (APPEARS HEAVIER)

•WHICH COLOR IS DENSEST?•WHICH COLOR IS LEAST DENSE?•WHAT HAPPENS AFTER THE LAYERED VIAL SITS FOR 5 MINUTES?

EXPLAIN WHY.•WHAT DO YOU THINK WOULD HAPPEN IF YOU PLACED THE LAYERED

VIAL IN A CUP OF HOT WATER 2 CM DEEP? EXPLAIN WHY• EXPLAIN THE RELATIONSHIP BETWEEN TEMPERATURE AND DENSITY.

• TURN IN TO LEARNING POCKET WITH YOUR NAME ON IT.

Conduction Lab – page AB(119) CD(131)• Starting Temps. • ______water ________ steel ________ aluminum _______ wood

______

2. What happened when the metal bars and wood with temperature strips were placed in the hot water?

3. Feel the two metal bars and the wood. How did heat get from the hot water to the temperature strip far above the water level? Draw a picture and explain.4. Did the metals conduct heat? Did the wood? Which was a better conductor? Why do you think so?

Movement of molecules

• (low energy) (high energy)

• CONTACT energy transfer

(warm – medium energy) (warm – medium energy)

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