1. Seafloor Siphons or What’s Going on in the Basement?!
INTRODUCTION

2. Water Cycle
Students: On your own paper, draw a diagram of the water cycle and label the parts
Students will draw on their own paper, then have a group discuss

3. The basic water cycle flow encompasses all land processes and the groundwater flow. The often neglected portion is through the basement of the seafloor and until recently rarely understood.

4. Groundwater Terms Porosity – amount of open space within a rock unit
Permeability – how interconnected the open space within a rock is; ability of water to flow through a material.
Background terminology
Aquifer – high porosity and permeable geologic material through which fluid can easily flow.

5. Explain the ability of water to flow from the recharge zones to discharge zones because this information will be used in Part 3 of the activity to conduct graphing exercise

6. Plate Tectonic Review

7. Plate Boundary Terms
Divergent Boundaries – two plates moving apart – new crust being formed (ex – mid ocean ridges)
Convergent Boundaries – two plates colliding results in either subduction zones or mountain formation
Transform Boundaries – two plates sliding past each other

8. Major Tectonic Plates of the world

9. Optional Video Resource
National Geographic Education – Plate Tectonics with Bob Ballard (5:47min)

10. Global Heat Flow Diagram
STUDENTS will make observations, write down observations and hypotheses to describe the flow
Partner with 3-4 students and discuss their ideas
Share with classmates

11. Pollack, H. N. , Hurter, S. J. , and Johnson, J. R
Pollack, H.N., Hurter, S.J., and Johnson, J.R., Heat flow from the earth's interior: analysis of the global data set, Reviews of Geophysics 31(3), , 1993.
An additional resource slide for reference of how this model was created – Actual data points taken from heat flow sites on top figure and modeled to create the heat flow figure below