0Stimulus: Ice at room temperature.
Q. What has caused water to melt at 0 degrees C
A. Water has weak bonds so they are easily broken.
B. Water has a covalent structure so the bonds are strong.
C. Water has a molecular structure so the forces between are weak.
D. Water has a combination of weak and strong bonds.
if ANSWER: C. Move students onto thinking about giant covalent properties.
If answer not C: drawing complex particle diagrams or using models to explain.