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1
Which statement best describes the difference between evaporation and boiling?
A
Evaporation produces a gas, while boiling produces a solid.
B
Evaporation occurs only at the surface of a liquid, while boiling occurs throughout the liquid.
C
Evaporation requires a higher temperature than boiling.
D
Evaporation occurs only at the bottom of a liquid, while boiling occurs at the surface.
2
When water vapor condenses into liquid water, what happens to the energy of the water particles?
A
The particles lose energy to the surroundings.
B
The particles neither gain nor lose energy.
C
The particles gain energy from the surroundings.
D
The particles gain energy and then lose it immediately.
3
A student notices that a puddle of water disappears after a sunny day, but the water in a pot boils when heated on a stove. Which process explains why the puddle disappears without boiling?
A
Condensation
B
Evaporation
C
Melting
D
Sublimation
4
In a particle model, which diagram best represents the arrangement of particles in a gas compared to a liquid?
A
Particles are close together but randomly arranged.
B
Particles are far apart and fixed in position.
C
Particles are far apart and move randomly at high speeds.
D
Particles are close together and arranged in a regular pattern.
5
During an investigation, a student observes that when a liquid is heated, it eventually boils. Which statement best explains why boiling requires a continuous supply of energy?
A
Energy is needed to break the bonds between particles so they can escape as gas.
B
Energy is needed to make the particles move slower.
C
Energy is needed to change the liquid into a solid.
D
Energy is needed to cool the liquid down.