Explain Effects of Gases - 5th Grade Science
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What is the best model-based explanation for a suction cup sticking to a smooth surface?
What is the best model-based explanation for a suction cup sticking to a smooth surface?
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Lower pressure under the cup lets outside air pressure push it on. Removing air creates pressure difference.
Lower pressure under the cup lets outside air pressure push it on. Removing air creates pressure difference.
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Which observable effect best supports the claim that air exerts pressure: a book falling or a parachute slowing?
Which observable effect best supports the claim that air exerts pressure: a book falling or a parachute slowing?
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A parachute slowing due to air pushing upward. Air resistance shows gas particles push on objects.
A parachute slowing due to air pushing upward. Air resistance shows gas particles push on objects.
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A sealed bag expands after being warmed. Which increased most: particle speed or particle size?
A sealed bag expands after being warmed. Which increased most: particle speed or particle size?
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Particle speed increased most. Temperature affects speed, not particle size.
Particle speed increased most. Temperature affects speed, not particle size.
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A sealed bottle dents inward after cooling. Which is higher: inside pressure or outside pressure?
A sealed bottle dents inward after cooling. Which is higher: inside pressure or outside pressure?
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Outside pressure is higher than inside pressure. Cooling reduced inside pressure below atmospheric.
Outside pressure is higher than inside pressure. Cooling reduced inside pressure below atmospheric.
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Which model best explains a balloon popping when too much air is added: increased or decreased collisions?
Which model best explains a balloon popping when too much air is added: increased or decreased collisions?
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Increased collisions increase pressure until the balloon bursts. Too many collisions exceed balloon's strength.
Increased collisions increase pressure until the balloon bursts. Too many collisions exceed balloon's strength.
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Which change decreases gas pressure in a sealed container: adding gas or removing gas?
Which change decreases gas pressure in a sealed container: adding gas or removing gas?
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Removing gas decreases gas pressure. Fewer particles mean fewer collisions.
Removing gas decreases gas pressure. Fewer particles mean fewer collisions.
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What causes a balloon to shrink when air is removed, according to a particle model?
What causes a balloon to shrink when air is removed, according to a particle model?
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Fewer particle collisions reduce pressure, so the balloon contracts. Less air means fewer collisions to maintain shape.
Fewer particle collisions reduce pressure, so the balloon contracts. Less air means fewer collisions to maintain shape.
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What causes a balloon to inflate when air is added, according to a particle model?
What causes a balloon to inflate when air is added, according to a particle model?
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More particles collide with the balloon, increasing outward pressure. More particles mean more collisions per second.
More particles collide with the balloon, increasing outward pressure. More particles mean more collisions per second.
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What observable effect shows that air is matter even though it is invisible?
What observable effect shows that air is matter even though it is invisible?
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It takes up space and can push on objects. Matter has mass and volume, creating observable forces.
It takes up space and can push on objects. Matter has mass and volume, creating observable forces.
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What does a particle model show about the spacing of particles in a gas?
What does a particle model show about the spacing of particles in a gas?
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Gas particles are far apart with lots of empty space. Unlike liquids/solids, gas particles have large gaps between them.
Gas particles are far apart with lots of empty space. Unlike liquids/solids, gas particles have large gaps between them.
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Which property of gases explains why a gas fills the entire shape of a container?
Which property of gases explains why a gas fills the entire shape of a container?
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Gases expand to fill all available space. Particles spread out to occupy any container shape.
Gases expand to fill all available space. Particles spread out to occupy any container shape.
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What does a particle model show about how gas particles move?
What does a particle model show about how gas particles move?
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They move freely and randomly in all directions. No forces hold them in place, so they move constantly.
They move freely and randomly in all directions. No forces hold them in place, so they move constantly.
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What is the scientific meaning of gas pressure in a closed container?
What is the scientific meaning of gas pressure in a closed container?
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Force from gas particle collisions pushing on container walls. Particles constantly hit walls, creating measurable force.
Force from gas particle collisions pushing on container walls. Particles constantly hit walls, creating measurable force.
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Identify the correct statement: gas particles collide with walls often or never in a container?
Identify the correct statement: gas particles collide with walls often or never in a container?
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Gas particles collide with walls often. Continuous collisions create pressure.
Gas particles collide with walls often. Continuous collisions create pressure.
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Which change increases gas pressure in a sealed container: heating it or cooling it?
Which change increases gas pressure in a sealed container: heating it or cooling it?
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Heating it increases gas pressure. Heat makes particles move faster and collide more.
Heating it increases gas pressure. Heat makes particles move faster and collide more.
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What observable effect best shows that gases can be compressed?
What observable effect best shows that gases can be compressed?
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Air in a syringe can be pushed into a smaller volume. Particles can be forced closer together.
Air in a syringe can be pushed into a smaller volume. Particles can be forced closer together.
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What is the best model-based explanation for wind pushing a flag outward?
What is the best model-based explanation for wind pushing a flag outward?
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Moving air particles collide with the flag and exert pressure. Wind is moving air particles hitting objects.
Moving air particles collide with the flag and exert pressure. Wind is moving air particles hitting objects.
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What is the best model-based explanation for drinking through a straw?
What is the best model-based explanation for drinking through a straw?
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Lower pressure in the straw lets air pressure push liquid up. Sucking removes air, creating pressure difference.
Lower pressure in the straw lets air pressure push liquid up. Sucking removes air, creating pressure difference.
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What is the best model-based explanation for a sealed bag shrinking in a freezer?
What is the best model-based explanation for a sealed bag shrinking in a freezer?
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Cooler gas moves slower, decreasing collisions and pressure. Cold slows particles, reducing collision frequency.
Cooler gas moves slower, decreasing collisions and pressure. Cold slows particles, reducing collision frequency.
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What is the best model-based explanation for a sealed bag puffing up in the sun?
What is the best model-based explanation for a sealed bag puffing up in the sun?
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Warmer gas moves faster, increasing collisions and pressure. Heat energy makes particles move and collide more.
Warmer gas moves faster, increasing collisions and pressure. Heat energy makes particles move and collide more.
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