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high tide—called a spring tide—and an especially low tide. Also twice a month, the pull of gravity of the sun and moon are at right angles to each other. At those times the high tide is lower than usual, and is called a neap tide. The low tides then are higher than usual. Earth, Moon, and Sun Section Summary
This three-part lesson plan will provide information about tides, the relationships between tides and water levels, and the impacts that high water levels can have on coastal communities. The first part of the lesson will explain how the moon and sun’s gravitational pull on the Earth create tides.
This kinesthetic learning activity will help students learn about the Earth’s tides by acting them out. Students will learn about the gravitational forces of the sun and moon, lunar phases, and vocabulary describing the tides.
When the moon is at its FULL and NEW phases, the Earth has higher tides and lower tides than at other times. These tides are called Spring tides and they occur twice a month, when the sun and the moon line up with the Earth.
Tides vary from day to day, but most places on Earth experience two high tides and two low tides every day (about 6 hours in between each tide). 1. What are tides caused by? 2. Which exerts stronger gravitational pull on earth, the sun or the moon? Why? 3. What is a spring tide? What position do the sun and moon have to be in to create a spring ...
Why is there a tidal bulge on the side of Earth opposite the Moon and not just one on the side of Earth facing the Moon? What is a spring tide? What is a neap tide? When and how do these types of tides occur? What have scientists learned from the tidal data collected at the San Francisco tide station? For all media see:
Spring and neap tides are connected to the phases of the moon. A spring tide occurs when there’s a new or full moon. Because it follows the moon’s lunar cycle, a spring tide happens twice per month. With the moon and sun roughly aligned the tides of Earth are on average slightly larger than usual.
