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25 Cards in this Set
- Front
- Back
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Mass and the units |
Measure of quantity in an object l. Measured in Kilograms |
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Volume and units of it |
How much space something takes up, measured by cm3, m3, litres, milliliters |
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Solid to Liquid |
Melting |
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Liquid to Solid |
Freezing/Solidification |
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Solid to Gas |
Sublimation |
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Gas to Solid |
Deposition |
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Gas to Liquid |
Condensation |
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Liquid to Gas |
Evaporation |
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Melting Point |
Temperature which solid turns to liquid |
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Freezing Point |
Temperature where a liquid turns to gas |
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Particle Theories rules |
All material us composed of very tiny objects called Atoms All Particles have space between them Particles present in matter are always in motion The particles in a substance attract each other There are forces of attraction between particles
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Compound |
A pure substance that is made from two or more elements that are combined together chemically |
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Element |
A pure substance that cannot be broken down any further into a simpler form in chemical means. Elements can be found on the periodic table |
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Mechanical Mixture |
A mixture where the components of the mixture are visible to the eye. Referred as a heterogenous mixture
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Suspension |
A cloudy mixture in where tiny particles of one substance are held within another. After a while, the solid settles at the bottom. ketchup is an example |
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Solution |
A solution is where the different substances are not individually visible. This is a homogenous mixture. Tea is a good example |
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How is cold created? |
There is no such thing as cold. It is just the amount of heat that is absent in a space. |
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Some Physical Properties of Water |
Cohesion: it sticks to itself Adhesion; sticks to other things Water is the only substance that expands when freezing, making ice less dense than water and lets it float |
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What is the positive of ice floating? |
It can help protect fish and sea life under the water with a later of ice |
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What are Physical Properties? |
Something you can measure, a physical property can be colour and lustre, conductivity, density, ductility, hardness, malleability, viscosity |
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Ductility |
A solid that can be turned into a long wire is considered ductile |
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Malleability |
A substance that can be pounded or rolled into sheets is said to be malluable |
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Viscosity |
Viscosity is the resistance to flow |
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Density |
The amount of mass in a given volume |
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Hardness |
The substances ability to resist being scratched or shaped or cracked |
