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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
A2.1 FREEZING
LINKS
The image on the right shows some melted wax at 80°C. The melting point of this wax is 64°C. The wax is cooling down: what will be the temperature when it turns back to solid?
Click on the temperature scale to check your prediction.
Notes: see Teachers’ Guide
teachers’ guide a3
more info
a1: melting
a2: freezing
a3: lead and salt
a4: substances
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a Science Enhancement Programme CD-ROM 2005
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