How pressure affects the movement of particles in gases and liquids?
High pressure moves the particles close together, they move slower. Low pressure allows the particles to move far apart, they move faster.
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Examples of deposition in nature
Frost, snowflakes and cirrus clouds
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Examples of sublimation
Dry ice - solid air fresheners
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How particles move in a liquid?
Particles are still in contact, but move around each other and change position.
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States of matter
changes
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Energy of motion
Kinetic energy
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Characteristics of shape and volume of liquids
Liquids have fixed volume but its shape can change. The particles move around each other and change places.
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Why does water expand when it freezes, and why is that unusual?
Because the way water molecules arrange themselves into a crystal results in more space between molecules than liquid water. Ice is less dense than liquid water
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Characteristics of shape and volume of solids
Solids have fixed volume and shape. Particles vibrate and move slowly, they are connected by chemical bonds.
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How is kinetic energy related to temperature?
High temperature means more movement of particles, and low temperature means less movement of particles. This may cause a change of state of matter.
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15
What is matter? Give 3 real life examples: one solid, one liquid, one gas.
Everything that takes up space, has mass and volume.