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7 2 Chem combo

Yr 7 Ch 2 Chem combo

Biodegradable bacteria or fungi breaks down the substance into simpler substances
Chemical properties how substances react with other substances
Compressed Squashed
Incompressible not able to be compressed or squashed
Non-biodegradable doesn't rot or break down
Odour smell
Physical properties describe things about the substance like its appearance, melting, freezing and boiling points and its hardness
Plasma the fourth state of matter, found in sparks, lightning bolts and in stars
States of Matter (phases) solid, liquid, gas (and plasma at temperatures over 6000 degrees C)
Atoms the incredibly tiny particles that make up all matter
Bonding forces of attraction that hold particles together
Brownian Motion random motion of particles cause by being bumped and jostled by other particles
Particle Model the model used to describe and explain the behaviour of particles in solids, liquids and gases.
Vibration jiggling about on the spot (moving but staying in place)
Boiling when vigorous bubbling appears
Boilinig Point the temperature at which a liquid boils: 100 C for water at sea level
Condensation removal of heat, changing a gas into a liquid
Deposition a gas changing directly into a solid
Evaporation heat changing a liquid into a gas
Freezing (solidification) removal of heat: changing a liquid into a solid
Freezing point the temperature at which a substance freezes: 0 C for water
Melting heat changing a solid into a liquid
Melting Point the temperature at which a substance melts: 0 C for ice to water
Steam condensation of water vapour, forming a visible fog of water droplets
Sublimation a solid changing directly into a gas
Created by: camwust