Particles Crossword Puzzle

Download and print this Particles crossword puzzle. Use a pencil or pen to complete the puzzle by filling in the blanks. The completed answers are included, so you can easily check your progress.

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Diffusion: When particles spread out from a crowded area to a less crowded area.
Concentration: How much of something is in a space.
Solid: A substance that keeps its shape and does not flow.
Gas: A substance that spreads out to fill any space and has no fixed shape.
Liquid: A substance that can flow and take the shape of its container.
Vibrate: To move quickly back and forth in one place.
Melting: When a solid turns into a liquid because of heat.
Evaporation: When a liquid turns into a gas, usually when it is heated.
Freezing: When a liquid turns into a solid because it gets colder.
Condensation: When a gas cools down and turns into a liquid.
Sublimation: When a solid changes directly into a gas without becoming a liquid first.
Ice: Frozen water; a solid form of water.
Plasma: A very hot state of matter where particles are charged (like in stars or lightning).
Particle: A tiny piece of matter, too small to see.
Regular: Even and repeated in the same way.
Pattern: A design or arrangement that repeats.
Metal: A type of material that is usually shiny, strong, and good at conducting heat and electricity.

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QUESTIONS LIST:

diffusion: when particles spread out from a crowded area to a less crowded area.
concentration: how much of something is in a space.
solid: a substance that keeps its shape and does not flow.
gas: a substance that spreads out to fill any space and has no fixed shape.
liquid: a substance that can flow and take the shape of its container.
vibrate: to move quickly back and forth in one place.
melting: when a solid turns into a liquid because of heat.
evaporation: when a liquid turns into a gas, usually when it is heated.
freezing: when a liquid turns into a solid because it gets colder.
condensation: when a gas cools down and turns into a liquid.
sublimation: when a solid changes directly into a gas without becoming a liquid first.
ice: frozen water; a solid form of water.
plasma: a very hot state of matter where particles are charged (like in stars or lightning).
particle: a tiny piece of matter, too small to see.
regular: even and repeated in the same way.
pattern: a design or arrangement that repeats.
metal: a type of material that is usually shiny, strong, and good at conducting heat and electricity.