Convection Currents Lab By
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Slide 2
In your notebook, answer the following: 1.What are convection
currents? 2.Make a hypothesis: - How does temperature affect the
density of a fluid? (Use If, then, because format). Part 1: Pre-lab
Questions:
Slide 3
Pour the hot water onto one side of the tank and the cold water
on the other side of the tank (about half of a plastic cup full).
Part 1: Convection Currents Lab Gather the following materials:
-Wave tank- hot water (red) - cold water (blue) Make sure the
plastic divider is in the middle of the tank. Do not fill more than
of each side with water. Follow each step Step 1 Step 2 Step 3 Step
4
Slide 4
In your notebook, answer the following: 1.Record your
observations: Draw a picture of convection currents. Use red to
indicate what happens to heated liquid and blue for cooling liquid.
2.Was your hypothesis correct? Explain. - Make sure you talk about
how temperature affects density in your explanation. Part 1:
Convection Currents
Slide 5
Answer the following in your notebook: 1.Complete the My Planet
Diary on page 264. *Cut it out and glue in your notebook. 2. How do
convection currents occur in the mantle (hinthint: look on page 267
of your textbook). Part 2: Convection Currents in the Mantle
Slide 6
Slowly drop food coloring into the oil. Make sure the droplets
stay in the oil. Part 2: Making a Lava Lamp Gather the following
materials: -Plastic cup - beaker of water - oil - food coloring -
alka-seltzer tablets Pour water into the bottom of the cup. Then,
pour the oil into the cup. When instructed, put an alka-seltzer
tablet into the cup. Follow each step Step 1 Step 2 Step 3 Step
4
Slide 7
Answer the following in your notebook: Water/oil =
asthenosphere Droplets of food coloring = rocks in the
asthenosphere Alka-seltzer = heat 1.Using the information above,
explain how the lava lamp models how convection currents occur in
the mantle. (*Include what you know about heat and density in your
explanation). 2.Complete Figure 3 on the bottom of page 267 by
placing the words in points A and B. Then, cut out and glue in your
notebook. Part 2: Convection Currents in the Mantle
