Name: ________________________________ Computer Lab: “Wave Erosion & Deposition” Date: ____________________________ Lab Period: _______ Lab Day: _______ Directions: Answer the following questions using the web address below. http://tinyurl.com/kn7nayo A. Home (Introduction) 1. What will you be exploring in this module? ________________________________________ ______________________________________________________________________________ B. Overview Wave Anatomy (p. 2): 2. What is a breaker? ____________________________________________________________ _____________________________________________________________________________ Wave Motion (pg. 3): 3. Click the “Zoom” on the far right of the diagram then read the last paragraph in the text column. Explain why waves “break” as they near the shore. _____________________________ ______________________________________________________________________________ ______________________________________________________________________________ Wave Refraction (p. 4) 4. What is wave refraction? ______________________________________________________ _____________________________________________________________________________ 5. In shallow water, waves slow down and ___________ until they are nearly parallel with the shore. In deep water, waves travel ________ and approach the shore at an ___________. Longshore Current (p. 5) 6. What is longshore current? _____________________________________________________ ______________________________________________________________________________ 7. The movement of water along the shore creates water currents that move sediment _____________ to the beach (look at the red dot). Rip Current (p. 6) 8. What is a rip current? _________________________________________________________ ______________________________________________________________________________ 9. What is the key element that forms the majority of rip currents? ________________________ ______________________________________________________________________________ 10. If you are caught in a rip current, how do you escape? ______________________________ _____________________________________________________________________________ Coastal Deposition Landforms (p. 7) 11. Watch the animation of the sand moving as a result of longshore drift. The sand appears to pile up and hook around the peninsula. The general term for this sandy feature that sticks out from the shore is called a “______” Coastal Erosion Landforms (p. 8) 12. Watch the animation of beach erosion. The tiny rocky island that is located just offshore from a rocky coastline is known as a ______ __________ Coastal Erosion: Controls (p. 9) 13. Fill out the chart below. Control Feature What is it? How does it affect erosion/deposition? Groin Jetty Seawall Breaker C. Model If time allows, click on this tab. Explore how you can control beach erosion and deposition between neighboring properties.