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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
C3.1 HOW HOT DOES IT HAVE TO BE FOR WATER TO BOIL?
LINKS
Watch the video and try to answer
the question:
Think for Yourself...
Why does the thermometer reading stay at 100° C when the water is boiling?
Notes: see Teachers’ Guide
teachers’ guide c4
more info
c1: gas state
c2: boiling water
c3: boiling point
c4: gases
c5: using ideas
more info
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a Science Enhancement Programme CD-ROM 2005
user guide
