Question: Look at the 2 pictures of drops on a flat, waterproof surface. The drop on the left is soapy water and the drop on the right is plain water. What causes the soapy water to look like it does?
Reference answer: The surface tension is broken by the soap so the soapy water drop is flat.

Student answer: The soapy water got flat because the soap in it broke its surface tension.

Student answer: Because soapy water is denser than plain water It looks kind of flat.

Student answer: The soapy water breaks the surface tension and forms a puddle.

Student answer: Well the water and the air form but then the soap comes and it is too slippery so it breaks the surface tension.

Student answer: The soapy water has little soap molecules that breaks in up and the water cannot stick together as well.

Student answer: Some of the particles are dirty and broke down.

Student answer: Because soap moves around water so it can make the water flat.

Student answer: Because the soap would hold it down.

Student answer: Because the person did put soap on it and so it made the dome turn flat.

Student answer: The soap broke the surface tension.

Student answer: The soapy water has soap in it. So the soap pull the drop down and made it flat.

Student answer: The soap breaks the surface tension which makes the water spill.

Student answer: The soapy water looks like it does because it has something more dense than water which is soap.

Student answer: The soapy water has a lot of soap so I do not think it has a lot of water tension.

Student answer: The soapy water has a lot of weight so the water spreads but still stays in one bead.

Student answer: Soap.

Student answer: The chemicals in the soap made that drop break and fall to the ground.

Student answer: Well the soapy water has water in it.

Student answer: Soapy water breaks the surface tension and the water spills.

Student answer: The soap.

Student answer: The soapy water look like that because it does not have surface tension like the plain water.

Student answer: The soap breaks the surface tension.

Student answer: Maybe because of the bubbles.

Student answer: Surface tension broke because of soap.

Student answer: The soap breaks the surface tension.

Student answer: It does not bead.

Student answer: The reason why it Looks like it does is the soap breaks surface tension so it is flat.

Student answer: The surface tension cause it to fall, collapse, because there was soap in the water.

Student answer: The soap brakes the surface tension so there is no dome.

Student answer: The soapy water has soap in it and breaks the water.

Student answer: It looks like that because the surface tension is not wide enough to balance a big drop of water.

Student answer: The soapy water looked this way because it had no surface tension because of the bubbles.

Student answer: What causes the soapy water to look how it is because there is chemicals is soap so there is chemicals in the water to make it look how it is.

Student answer: The soap in the water makes the surface tension go away so it is flatter.

Student answer: Because the soapy water has less texture.

Student answer: Soap breaks the surface tension that is why it looks like that.

Student answer: It has soap and has water combined with it.

Student answer: The soapy water does not have surface tension but plain water does.

Student answer: Because it is soapy water and it pops.

Student answer: Because the soapy water had less water.

Student answer: Soap added to plain water reduces or weakens the surface tension. Salt does not effect it.

Student answer: The soapy water was too denser.

Student answer: The soapy water does not have surface tension skin.

Student answer: Soapy water is so slippery it causes it to pop.

Student answer: Soapy water looked like that because it was just flat on the table it did not bead together.

Student answer: The soap makes the dome break.

Student answer: The soapy water had soap in it. It cannot stack. It just formed a puddle.

Student answer: Soapy water.

Student answer: I do not know why.

Student answer: It has got too much soap.

Student answer: Because the soapy water expands.

Student answer: Because it is kind of slippery.

Student answer: The soapy water dome is flat because it is soapy and slippery.

Student answer: The soapy water Cannot form up because it does not have surface tension.

Student answer: Because soapy water breaks the dome not like plain water. Surface tension.

Student answer: The soapy water made it go down.

Student answer: Heavier than plain water.

Student answer: Surface tension.

Student answer: When you add soapy water, the soap breaks the surface tension, so it is not as round.

Student answer: It has more weight and density.

Student answer: The soapy water looks like that because it has no surface tension because the soap breaks surface tension.

Student answer: Because soap breaks the surface tension and Becomes flat.

Student answer: The soap caused the surface tension to break.

Student answer: It had particles in it.

Student answer: Because of the soap it has something in it.

Student answer: Surface Tension.

Student answer: The soap because it lowers surface tension.

Student answer: Soap.

Student answer: Soap breaks the surface tension causing the water to spread out.

Student answer: The soap in the water made it heavy and broke down the water.

Student answer: The soap in the water.

Student answer: No surface tension.

Student answer: Soapy water almost breaks it in fact it does!

Student answer: The soapy water looks like that because it has all those bubbles which makes the surface area go down.

Student answer: The soapy water looks like that because if you put drops of soapy water on a penny it does not take as long to break the surface tension as the plain water.

Student answer: The soapy water has almost no surface tension.

Student answer: Soapy water breaks up the grip of the water minerals.

Student answer: The soapy water has less surface tension to hold the bubble together It breaks the bubble with one drop.

Student answer: Because it evaporated.

Student answer: The soapy water looks like that because there are chemicals in it.

Student answer: The soap weighs down the dome of water, causing it to look flat.

Student answer: It has more weight.

Student answer: Soapy water has soap in it so it looks flatter.

Student answer: The soap flattens out the drop.

Student answer: The soap broke the surface tension.

Student answer: There more weight on it.

Student answer: The soapy water breaks the surface tension.

Student answer: The soap is pushing it down.

Student answer: Air bubbles are inside the drop so it not as dense as the plain water and expands.

Student answer: The soap added and surface tension.

Student answer: The surface tension broke and spread out.

Student answer: Because when you put water and soap together it makes bubbles and it had more bubbles than water.

Student answer: Because soap breaks surface tension so it has no surface tension!

Student answer: Because of its particles.

Student answer: The surface tension.

Student answer: It breaks surface tension.

Student answer: The soapy water is too strong for the surface tension to hold it up.

Student answer: The soapy water break the surface tension.

Student answer: Because soap is heavy.