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v4: candle wax
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User guide
Teachers’ Guide
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Substances
A1 Melting/Freezing
B1 The particle theory
C1 The gas state
D1 The three states
E1 Density
Mixtures
F1 Melting behaviour
G1 Evaporation of water
H1 Condensation of water
I1 Recognising dissolving
J1 Solubility
K1 Separating mixtures
Changing substances
L1 Structures
M1 Chemical change
Advanced substances
N1 Crystals
O1 Change of state
P1 Gas and pressure
Advanced mixtures
Q1 Diffusion
R1 Rate of evaporation
S1 Rate of dissolving
T1 Chromatography
Advanced changes
U1 Formulae
V1 Fire
W1 Acids
V4.1 CANDLE WAX
LINKS
Remember, wax molecules look like this, very similar to oleic acid molecules:
Wax is in the
solid state
at room temperature.
Try to answer these questions, then watch the video.
Think for Yourself...
Why is wax in the solid state at room temperature, but oleic acid in the liquid state?
How would you try to get wax to react with oxygen?
What will the new substances be?
Notes: see Teachers’ Guide
teachers’ guide v6
more info
v1: flames:hydrogen
v2: flames:methane
v3: more flames
v4: candle wax
v5: combustion
v6: decomposition
more info
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a Science Enhancement Programme CD-ROM 2005
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