Properties of Matter

Jade Dickey
Flashcards by Jade Dickey, updated more than 1 year ago
Jade Dickey
Created by Jade Dickey over 5 years ago


Flashcards on the properties of matter

Resource summary

Question Answer
Physical Properties Help to identify a substance Are readily observable Color, hardness, density, boiling point, change of state etc.
Thermal Conductivity the rate at which a substance transfers heat – Good conductor: metal – Poor conductor: Styrofoam
State the physical form in which a substance exists. (solid, liquid, gas or plasma)
Solubility the ability of a substance to dissolve in another substance. (ex. Flavored drink mix in water)
Ductility the ability of a substance to be pulled into a wire
Malleability the ability of a substance to be rolled or pounded into thin sheets
Physical Change Cause changes to physical properties Physical properties will change but the substance or type of matter will remain the SAME! DO NOT result in the formation of a new substance
Examples of Physical Change If you melt a block of ice, you still have H2O in the end. If you break a bottle you still have glass. Painting a piece of wood will not make it not be wood. Melting, freezing, breaking, condensing, crushing, cutting and bending
Chemical Properties Describe matters ability to change into new matter. Can only be observed if the type of matter is changed
Characteristic Property A property that is always the same no matter the size of the sample. These can be used to identify and classify a substance. – Examples: density and magnetism  
Chemical Property Examples Flammability: – will the object burn? Reactivity – Will to substances react to form a new substance?
Difference between physical and chemical properties? We can observe physical properties without changing the substance. We cannot observe a chemical property without changing the matter involved.
Chemical Change A change that matter undergoes when it turns into a NEW substance – elements of the original substance are broken apart and rearranged to form a NEW substance Chemical Changes ALWAYS result in the formation of a NEW substance with different properties than the original substance(s). Chemical Changes are difficult to reverse (think of trying to unbake a cake)
Common Examples of Chemical Change • Burning a log causes a chemical reaction that releases carbon dioxide • Placing an alka-seltza in water releases carbon dioxide bubbles • Exposing some metals to water and oxygen causes the formation of rust • Other processes that include chemical reaction: • Digestion • Respiration • Photosynthesis • Decomposition
Signs that a chemical change has occurred Change in color Change in odor Production of heat Fizzing Foaming Sound or light being given off
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