This activity involves students graphing the daily high and low tide averages for a specific location during the Months of August and September, 2006. After the graph is completed students are to diagram the relative positions of the Earth, Sun and Moon on their graphs for the same period. Armed with their completed graphs the students answer a series of questions designed to reveal that both the Moon and the Sun are responsible for variations in tide heights.
This activity can take up to three days, but can be shortened easily with teacher modifications.
The thumbnail represents a completed student graph which was done on Excel but uses different data than is supplied with this activity. Student graphs will appear similar but the tides and moon phases will be on different dates.
A zipped file including 7 pdf documents:
1. Instructions on how to perform the activity
2. The data needed to complete a graph of high and low tides for the months of August and September 2006. This data can be replaced with more current data if the teacher desires. This data however produces the results needed to illustrate the concepts.
3. Printable graph paper
4. Questions for students to answer after their graphs are complete.
5. An answer key for the student questions
6. A data sheet the teacher may supply to the students if they want to shorten the time required to complete the activity.
7. Moon phase data for the period of August and September 2006.
I have the same documents, with the exception of #6, available in rich text format available on TPT under the title "Ocean Tides and the Phases of The Moon". The price for these editable documents is 50 cents.