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Mixtures Notes #1-3

Science Grade 6

Physical Changes a change that DOES NOT produce a new substance, but changes some properties
Chemical Change a change that DOES produce a new substance
What kind of change is: aluminum foil cut in half Physical change
What kind of change is: lighting a match Chemical change
What kind of change is: rust on a nail Chemical change
What kind of change is: melting butter on toast Physical change
What kind of change can be recovered? Physical Change
What kind of change are the particles broken apart and rearranged into new particles? Chemical change
What are physical properties? characteristics that can be observed or measures without changing the makeup
Examples of physical properties color, smell, size, texture
What are chemical properties? characteristics that can only be observed by changing the makeup
Examples of chemical properties atoms and molecules: water is made of hydrogen and oxygen
Phase change is _______ physical
Burning is a ___________ change chemical
Bubbling or fizzing is a ____________ change Chemical because a new gas is forming
A color change indicates atoms are separating (chemical)
Chemical changes cannot go back to original form
mixture 2 or more substances combines physically
In a mixture, substances keep their chemical properties
homogenous mixture all substances one color
heterogenous mixture substances have more than one color
solution a mixture where one substance dissolves into another substance
dissolve to mix evenly
sugar is able to dissolve so it is soluble
Solutions are clear
solute the substance that gets dissolved (sugar)
solvent what does the dissolving (water)
universal solvent water
suspension cloudy mixture where particles settle on standing
insoluable unable to dissolve
colloid mixture that is mixed but not dissolved
permanent emulsions (milk, paint) colloids
Which separate upon sitting suspensions
Which are homogenious solutions and colloids
Created by: bcataldi
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