DATE: NAME: Movement in the Mantle Purpose ● To observe movement in the asthenosphere (Earth’s Mantle). Hypothesis: When the hot coloured water is in the bottom jar and the cold coloured water is in the top jar________ will _____________. When the cold coloured water is in the bottom jar and the hot coloured water is in the top jar, the _________ will _____________. Materials: (List all the materials used in the experiment.) 2 Large 750mL glass jars that are exactly the same size Hot Tap Water Cold Tap Water Wax Paper Food Colouring Procedure: Part 1: 1. Fill one jar with very hot tap water. Make sure that the water goes up to the top of the jar. 2. Add a few drops of food colouring to the hot water. CAUTION: Be very careful with hot water. 3. Fill the second jar with very cold water. Again, make sure that the water goes up the very top of the jar. 4. Cut out a square piece of wax paper, 10cm by 10cm. Place the piece of wax paper on top of the jar of cold water. 5. Hold the wax paper tightly on the jar of cold water as you carefully invert the jar and place it on top of the jar of hot water. (if you do not hold the wax paper tightly, you may get wet!) 6. Once the cold water jar is on top of the hot water jar, carefully pull out the wax paper from between the jars. 7. Observe what happens. Record your results. Part 2: 1. Repeat the procedure for Part 1, with two important differences. Place the wax paper over the hot water jar. Place the cold water jar on the bottom and the hot water jar on the bottom. 2. Observe and Record your results. Observations: ____________________________________________________(Title) Cold water on top of Hot water before removal of wax paper Water mixing Observations Continued…. Hot water on top of Cold water before removal of wax paper Water mixing Conclusion: (Explain what happened with the hot water in Part 1 and Part 2 as well as why food colouring was added to the hot water. Explain what you can infer about what happens when a hot fluid and a cold fluid meet and how this helps us understand what happens in the asthenosphere). _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ ________________________________________________________________________________ Effort Mark: N S G Developing Brief, vague observations. Minimally Meeting Observation and results have little detail. More information is needed. Meeting Observation and results have simple detail. More information is needed. Fully Meeting Detailed observations and results. Illogical or no conclusion. Conclusion does not make reference to the purpose. Support needed. Conclusion makes some reference to the purpose; support needed. Logical conclusion; makes some reference to purpose. Needs to use time more wisely; more organization needed. LATE! Avoid rushing, organization needed. Handed in late. Needs to avoid rushing; more organization needed. Completed on time. Neat, legible work. Completed on time. Exceeding Detailed observations and results with intuitive thinking. Conclusion is logical and makes reference to purpose and analyzes results. Neat and legible. Completed on time.