Name _____________________________________________ Block______ Date________________ When the Tide Comes In- A Treasure Hunt about the Ocean Tides http://co-ops.nos.noaa.gov/restles1.html 1. What does the word tide mean? ___________________________________________________________________ http://oceanservice.noaa.gov/education/tutorial_tides/tides01_intro.html 2. Forces exerted by what two objects cause ocean tides? _________________________________________ 3. What is a high tide? _________________________________________________________________________________ 4. What is a low tide? __________________________________________________________________________________ 5. What is a tidal range? _______________________________________________________________________________ http://www.ndbc.noaa.gov/educate/tides.shtml 6. Does the sun or the moon play a larger role in producing the tides? ___________________________ 7. Why? _________________________________________________________________________________________________ http://oceanservice.noaa.gov/education/tutorial_tides/tides05_lunarday.html 8. How many high tides occur each day? _____________________________________________________________ 9. How many low tides occur each day? ______________________________________________________________ http://oceanservice.noaa.gov/education/kits/tides/media/supp_tide06a.html 10.What phases of the moon are the sun, moon and earth in alignment? _________________________ 11.What is the name of the extra-high tides that occur when the sun and moon are pulling in the same direction? _________________________ 12.What is the name of the tide that occurs when the sun and moon are at right angles to the Earth? ___________________________ http://oceanservice.noaa.gov/education/tutorial_tides/tides07_cycles.html 13.Why does the normal number of high and low tides not happen in some places? ________________________________________________________________________________________________________ 14.Name one place where this is true, and tell how many high/low tides happen there. ________________________________________________________________________________________________________ 15. What is the most interesting thing you learned today about tides? ________________________________________________________________________________________________________