What is a tide? - A tide is the rise and fall of ocean water levels., What makes tides possible? - Mostly the moon's gravity makes tides possible, but the sun's gravity also effects tides., What is a high tide? - A high tide happens when the gravitational force of the moon create tidal bulges toward the moon and on the opposite side of the Earth. Where there is a tidal bulge, there is a high tide., What is a low tide? - High tides draw water away from the area between the high tides and cause low tides to form in those areas., What is a neap tide? - Neap tides are tides that have the smallest daily tidal range., What moon phases can you find a neap tide in? - Neap tides occur in the 1st and 3rd quarter moons., What is a spring tide? - Spring tides are tides that have the largest daily tidal range., What moon phases can you find a spring tide in? - Spring tides occur in the new and full moons., Describe the position of the Sun, Earth, and Moon during a Neap tide - The sun, Earth, and moon are all at a 90 degree angle., Describe the position of the Sun, Earth, and Moon during a Spring tide - The sun, Earth, and moon are all in alignment (SME or SEM)., What is the difference between revolve and rotate? - To revolve is to move in a circle around a fixed point. To rotate is to spin or turn on an axis., How long does it take for Earth to rotate once on its axis? What does this give us on Earth? - It takes Earth 24 hours to rotate once on its axis. This gives us on Earth a day., How long does it take to complete a lunar cycle? What does this give us on Earth? - It takes 29 ½ days to complete a lunar cycle. This gives us on Earth the phases of the moon., How long does it take for the Earth to revolve around the sun? What does this give us on Earth? - It takes 365 ¼ days for the Earth to revolve around the sun. This gives us a year on Earth.,

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