Tides are produced mainly by differences in the Moon's gravitational pull across Earth, with the Sun also contributing.
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LIVE VISUAL LAB
SUN
EARTH
Interactive teaching model • relationships are controlled; scale, distance or timing may be simplified and are labeled here.
The big idea
Tides are produced mainly by differences in the Moon's gravitational pull across Earth, with the Sun also contributing.
Ocean basins, coastlines and Earth's rotation shape the local timing and height of tides.
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HOW SCIENTISTS KNOW
Tide gauges match precise predictions based on lunar, solar and coastal geometry.
WORDS TO OWN
tidegravityoceanspring tide
!A COMMON WRONG MODEL
Tides is only a name or picture to memorize.
✓REBUILD IT WITH EVIDENCE
Connect tides to the observable relationship, evidence and system described in the lesson.
A scientifically true sentence can still create a false picture. This repair makes the relationship visible.
Take learning into real life
Try it together
Use a ball as the Moon, a larger ball as Earth and a stationary lamp as the Sun. Move one body at a time and label every simplified distance. Connect what you notice to tides using tide and gravity.
GREEN SAFETYOrdinary low-risk activity with normal caregiver awareness.
01TALKWhat do you predict before we try it?02LOOKWhat changed? What stayed the same?03EXPLAINWhich evidence supports your idea?
Check understanding
Which statement best explains tides?
Choose the explanation that matches the evidence—not just the most familiar words.
Three things to remember
✓Tides are produced mainly by differences in the Moon's gravitational pull across Earth, with the Sun also contributing.
✓Ocean basins, coastlines and Earth's rotation shape the local timing and height of tides.
✓Evidence matters: tide gauges match precise predictions based on lunar, solar and coastal geometry.
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