The force of surface tension also created bubbles. What happened when you put your soapy finger into the water? The soap broke the water's surface tension and some of the water molecules stopped sticking to each other causing them to be pushed out of the glass. Surface tension is what caused the water to rise up above the rim of the glass in the experiment and form a dome instead of spilling over the side.
At the top of the water, the molecules stick together very closely to make a force called surface tension. In this activity, the water molecules are attracted to each other and stick together. An atom is the smallest piece of a chemical element that is still that element. A molecule is two or more atoms bonded together. What happens this time?īefore we begin, let's define molecule.
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