By forces (push and pull, wind)and vibrations and even by magnets!
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What is movement?
Movement is a change in position or place.
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What is force?
A force is a push or a pull that moves things.
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What is gravity?
Gravity is a force that pulls things down. It pulls people and things down to the earth.
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What are some of the ways in which things move?
straight up, zig zag, back and forth, round and round.
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Why does a swing move back and forth?
Because of a force
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How do things vibrate?
Things vibrate when they move back and forth very fast because of movement.
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What happens when an object vibrates?
When an object/sound sources moves or vibrates, it causes the molecules of air surrounding the object to move. This sounds a sound wave to the person's ears.
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What happens when the sound waves from the sound source enter the ear?
When the sound waves enter the ear canal, they they make the eardrum vibrate. Nevers carry the messages to the
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What must happen for the sound to be made?
Vibration caused by movement
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Which state of matter did we study about?
liquids!
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True or false:liquids cannot take the shape of the container they are in.
False. Liquids do not hold their own shape!
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Qhat is the word that describes how thick or thin the liquids are and how easily they flow?
Viscosity
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Do all liquids move at the same speed?
No. Liquids move at different speeds depending upon their thickness.
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which out of the two liquids has high viscosity? Oil or Honey?
Honey! Because honey is thicker in texture.
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which out of the two liquids has low viscosity? Water or Ketchup?
water! Because water is not as thick as ketchup and it flows quickly.