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tides
Schrift-wk 4.4 tides
| Question | Answer |
|---|---|
| the regular rise and fall of the ocean's surface | tides |
| an invisible force that pulls object toward each other | gravity |
| the force of gravity between two objects depends on two things | the amount of mass the objects have and the distance between the tow objects |
| what causes tides | the gravitational pull of the moon on earth's oceans |
| the number of high and low tides that happen each day | two high tides and two low tides |
| about how often do the tides change between high and low tides? | about every six hours |
| the more mass an object has | the more gravitational pull the object has |
| the closer objects are to each other | the more gravitational attraction they will have on one another |
| about how long is it between two high tides | about every 12 and 1/2 hours |
| blank | blank |