Particles Exist When Matter Disappears - 5th Grade Science
Card 1 of 20
Which type of system best shows conservation of matter: open container or sealed container?
Which type of system best shows conservation of matter: open container or sealed container?
Tap to reveal answer
Sealed container. Closed systems prevent matter from entering or leaving.
Sealed container. Closed systems prevent matter from entering or leaving.
← Didn't Know|Knew It →
What is the particle model statement that explains why matter can seem to disappear?
What is the particle model statement that explains why matter can seem to disappear?
Tap to reveal answer
Matter is made of tiny particles that can spread out or change state. Particles don't disappear - they just spread out or rearrange.
Matter is made of tiny particles that can spread out or change state. Particles don't disappear - they just spread out or rearrange.
← Didn't Know|Knew It →
What is the correct meaning of “matter appears to disappear” in particle terms?
What is the correct meaning of “matter appears to disappear” in particle terms?
Tap to reveal answer
The particles are still present but are spread out or mixed in. Particles still exist but in different arrangements or locations.
The particles are still present but are spread out or mixed in. Particles still exist but in different arrangements or locations.
← Didn't Know|Knew It →
Which option best explains why perfume smell spreads across a room: diffusion or freezing?
Which option best explains why perfume smell spreads across a room: diffusion or freezing?
Tap to reveal answer
Diffusion. Perfume particles spread through air by random molecular motion.
Diffusion. Perfume particles spread through air by random molecular motion.
← Didn't Know|Knew It →
What is diffusion in terms of particles of matter?
What is diffusion in terms of particles of matter?
Tap to reveal answer
Particles move from high concentration to low concentration by random motion. Natural spreading occurs due to constant particle movement.
Particles move from high concentration to low concentration by random motion. Natural spreading occurs due to constant particle movement.
← Didn't Know|Knew It →
What is the correct definition of condensation in terms of particles of matter?
What is the correct definition of condensation in terms of particles of matter?
Tap to reveal answer
Gas particles lose energy and become liquid particles. Cooling removes energy, bringing gas particles closer together.
Gas particles lose energy and become liquid particles. Cooling removes energy, bringing gas particles closer together.
← Didn't Know|Knew It →
Identify the best explanation for a wet shirt drying on a clothesline in particle terms.
Identify the best explanation for a wet shirt drying on a clothesline in particle terms.
Tap to reveal answer
Water particles evaporate into the air as water vapor. Liquid water gains energy from air and becomes invisible gas.
Water particles evaporate into the air as water vapor. Liquid water gains energy from air and becomes invisible gas.
← Didn't Know|Knew It →
What is the correct definition of a gas particle arrangement compared with a liquid?
What is the correct definition of a gas particle arrangement compared with a liquid?
Tap to reveal answer
Gas particles are much farther apart and move more freely than in liquids. Gas particles have more energy and space to move than liquid particles.
Gas particles are much farther apart and move more freely than in liquids. Gas particles have more energy and space to move than liquid particles.
← Didn't Know|Knew It →
Which observation best shows that evaporated water is still present as particles in the air?
Which observation best shows that evaporated water is still present as particles in the air?
Tap to reveal answer
Water droplets form on a cold surface (condensation). Water vapor in air turns back to liquid when cooled.
Water droplets form on a cold surface (condensation). Water vapor in air turns back to liquid when cooled.
← Didn't Know|Knew It →
What is the correct definition of evaporation in terms of particles of matter?
What is the correct definition of evaporation in terms of particles of matter?
Tap to reveal answer
Liquid particles gain energy and become gas particles in the air. Heat energy makes liquid particles move fast enough to escape as gas.
Liquid particles gain energy and become gas particles in the air. Heat energy makes liquid particles move fast enough to escape as gas.
← Didn't Know|Knew It →
What is the correct definition of dissolving in terms of particles of matter?
What is the correct definition of dissolving in terms of particles of matter?
Tap to reveal answer
Solute particles mix evenly among solvent particles without vanishing. Particles spread between spaces but remain unchanged chemically.
Solute particles mix evenly among solvent particles without vanishing. Particles spread between spaces but remain unchanged chemically.
← Didn't Know|Knew It →
Which change of state explains why a puddle disappears on a warm day: melting, freezing, or evaporation?
Which change of state explains why a puddle disappears on a warm day: melting, freezing, or evaporation?
Tap to reveal answer
Evaporation. Water changes from liquid to gas state when heated by the sun.
Evaporation. Water changes from liquid to gas state when heated by the sun.
← Didn't Know|Knew It →
Identify the best explanation for a disappearing ice cube in a warm room: melting or evaporating?
Identify the best explanation for a disappearing ice cube in a warm room: melting or evaporating?
Tap to reveal answer
Melting (solid water becomes liquid water). Ice changes to liquid water, which then may evaporate.
Melting (solid water becomes liquid water). Ice changes to liquid water, which then may evaporate.
← Didn't Know|Knew It →
What is the main idea of conservation of matter for a closed system?
What is the main idea of conservation of matter for a closed system?
Tap to reveal answer
Matter is not created or destroyed; it only changes form or location. Total amount of matter stays constant during any change.
Matter is not created or destroyed; it only changes form or location. Total amount of matter stays constant during any change.
← Didn't Know|Knew It →
Which process explains why sugar seems to disappear in water: dissolving, melting, or burning?
Which process explains why sugar seems to disappear in water: dissolving, melting, or burning?
Tap to reveal answer
Dissolving. Sugar breaks into particles that spread between water molecules.
Dissolving. Sugar breaks into particles that spread between water molecules.
← Didn't Know|Knew It →
Which option best explains why mass seems to decrease when water evaporates from an open cup?
Which option best explains why mass seems to decrease when water evaporates from an open cup?
Tap to reveal answer
Water particles leave the cup and mix with air particles. Particles escape to air, reducing mass in the cup only.
Water particles leave the cup and mix with air particles. Particles escape to air, reducing mass in the cup only.
← Didn't Know|Knew It →
Which statement best describes particles in a solid compared with a gas?
Which statement best describes particles in a solid compared with a gas?
Tap to reveal answer
Solid particles are tightly packed; gas particles are far apart. Particle spacing determines the state of matter.
Solid particles are tightly packed; gas particles are far apart. Particle spacing determines the state of matter.
← Didn't Know|Knew It →
Choose the word that names the substance that gets dissolved: solute or solvent?
Choose the word that names the substance that gets dissolved: solute or solvent?
Tap to reveal answer
Solute. The substance being dissolved by the solvent.
Solute. The substance being dissolved by the solvent.
← Didn't Know|Knew It →
Choose the word that names the substance that does the dissolving: solute or solvent?
Choose the word that names the substance that does the dissolving: solute or solvent?
Tap to reveal answer
Solvent. The liquid that other substances dissolve into.
Solvent. The liquid that other substances dissolve into.
← Didn't Know|Knew It →
What change of state happens when a liquid becomes a gas and seems to disappear?
What change of state happens when a liquid becomes a gas and seems to disappear?
Tap to reveal answer
Evaporation. Liquid particles gain energy and escape as invisible gas.
Evaporation. Liquid particles gain energy and escape as invisible gas.
← Didn't Know|Knew It →