The adhesive properties of water(big idea 2#1) are sen here as steam from the sink condenses on a cool window. If water had no adhesive properties, it would condense and then fall off the window as soon as it formed from the steam. However, the water drops form and will only fall when the gravitational pull is freater than the adhesive force. It joins up with other bits of water on the way down(they pull together and look cool) due to cohesive forces.
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