Day 1 Physical and Chemical Change.notebook
Chemical Reactions Day 1:
Properties and Change
February 29, 2016
Learning Goals :
By the end of today I can :
• define the terms chemical change, chemical property, physical change and physical property
• list the indicators of a chemical change
• Identify a statement as being a chemical change, chemical property, physical change or physical property
• compare chemical change to chemical property
• compare physical change to physical property
Sep 4­7:42 AM
Mar 28­1:22 PM
Feb 29­12:38 PM
Feb 29­1:01 PM
Chemical Properties versus Physical Properties
Property: a characteristic used to describe something
Notes:
Chemical Property
Physical Property
Physical Property
Chemical Property
boiling point
flammability
maleable
rusts
reacts with a base
elastic
transparent
reacts with an acid
ductile
brittle
density
melting point
forms a precipitate
produces a gas
changes colour
Mar 28­1:25 PM
Mar 28­1:26 PM
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Day 1 Physical and Chemical Change.notebook
February 29, 2016
Chemical versus Physical Change
Characteristic Physical Property
Change: becoming different/altered
A physical property that allows you to identify the substance.
Eg. Water melts at 00C and Boils at 1000C
Notes :
A new substance is formed
Apr 2­4:13 PM
Physical Change
breaking glass
bleaching your hair
mixing oil and vinegar
fireworks exploding
still the same substance
Mar 28­1:16 PM
Chemical Change OR Physical Change?
Chemical Change
Physical Change
Chemical Change
mixing salt and water
hammering two pieces of wood together
Indicators of a Chemical Change:
1) Heat and/or light produced
2) Gas produced
3) Colour change
frying an egg
water evaporating
a rusting bicycle
cutting grass
squeeze oranges for juice
burning leaves
melting butter
crushing a pop can
4) Precipitate Produced
5) Not easily reversed *** (Not my favourite option***)
boiling water
melting ice
separating sand from gravel
Mar 28­1:17 PM
Sep 4­7:50 AM
Information Found in a Chemical Reaction
CH4 (g) + 2O2 (g) ­­> 2H2O (l) + CO2 (g)
Oct 15­1:20 PM
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