Matter in Our Surroundings

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Matter is anything that has mass and occupies space (has volume). Examples: The chair you sit on, the air you breathe, water you drink, the book you read, your pencil, etc. Everything in our surroundi…

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The salt did not disappear; it broke down into tiny particles that spread throughout the water. This shows that matter is made up of small particles. The salt particles got into the spaces between wat…

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This demonstrates that particles of matter are incredibly small. Just a few visible crystals contain millions of tiny particles. When diluted repeatedly, the color still spreads because each particle …

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1. Particles have spaces between them - This is why particles can diffuse and mix with each other. 2. Particles are continuously moving - They possess kinetic energy which increases with temperature.

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When food is cooked (hot), its particles have high kinetic energy and move rapidly. They spread through air quickly by diffusion, reaching your nose from a distance. An unlit incense stick (cold) has …

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Diffusion is the spontaneous intermixing of particles of two different types of matter on their own, as they move into spaces between each other. When heated, particles move faster because their kinet…

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The group locked arm-to-arm (maximum force) represents solids - particles held very tightly. The hand-holding group (medium force) represents liquids - particles with moderate attraction. The finger-t…

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Solid: Fixed shape and fixed volume. Example: Chair, book, pencil. Liquid: No fixed shape but fixed volume. Takes shape of container. Example: Water, milk, oil. Gas: Neither fixed shape nor fixed volu…