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In what way does cohesion play a part in how many drops of water can be dropped onto the head side of a penny?
Cohesion is the attraction between water molecules that allows them to stick together. This cohesion enables the water drops to pile up on top of each other on the head side of a penny without spilling over the edge. The surface tension created by cohesion allows the drops to form a dome shape on the penny before spilling.
What else can I help you with?
How do soapy water drops stay on a penny?
When soapy water is dropped on a penny, the surface tension of the water allows it to form a dome-like shape rather than immediately spreading out. The soap molecules reduce the surface tension of the water, allowing it to adhere to the penny and form a cohesive drop.
Which 3 of the four words are related cohesion water drops hydrogen bonds and adhesion?
The three related words are cohesion, water drops, and hydrogen bonds. Cohesion refers to the attraction between water molecules due to hydrogen bonds, which is why water forms droplets. Adhesion, while related to the interaction of water with other surfaces, is not directly tied to the formation of water drops.
How many drops of soapy water fit in a penny?
Ideally, everyone performing the experiment would include the following: - distilled waterThere are a lot of factors involved. The cohesion and adhesion ('stickiness') of water molecules can be effected by things like oils (on surface pennies from peoples' skin) and other contaminates on the penny. The size of the dropper or pipette will determine the size of each water droplet - the larger the drop, the fewer number of drops will fit on the penny. The manner in which the water is added to the penny is also a factor. Water has a cohesive nature (the molecules are kind of like magnets and are attracted to one another). Therefore, if the drop from the pipette is allowed to touch the water already on the surface of the penny, the water can be 'pulled' out of the dropper. When this happens, the size (volume) of the drop is not always the same - it could be a very small amount (which will result in a very large number of drops), or a large amount. Soap causes the cohesiveness ('stickiness') of the water molecules to decrease so they are not as strongly attracted to each other. Because of this, when soap is added to the water the number of drops that can be placed on the penny will decrease. The water molecules can't 'stick' together as well, so the water on top of the penny spills off sooner than it would with non-soapy water. Ideally, everyone performing the experiment would include the following: - distilled water (to start with) - same type/size of calibrated dropper/pipette - same date of penny - penny cleaned as thoroughly as possible using same cleaning procedure - same 'dropping' procedure
Does the amount of soapie water effect how many drops can fit on a penny?
Yes, the amount of soapy water can affect how many drops fit on a penny. More soap can reduce the surface tension of the water, allowing it to spread and form a flatter shape, which may result in fewer drops fitting on the penny. Conversely, less soap increases surface tension, potentially allowing more drops to fit. Therefore, the concentration of soap in the water plays a significant role in this experiment.
What is the difference in drops of water you can fit on a penny if you use soap and regular water?
When you place regular water on a penny, surface tension allows you to fit about 15-20 drops before it overflows. However, when you add soap to the water, the surface tension decreases, allowing more water to spread out rather than bead up. As a result, you can typically fit around 10-15 drops of soapy water on the penny, demonstrating the effect of soap on water's surface properties.
Drops on a penny?
The surface tension of water allows drops to sit on a penny without overflowing. This is due to the cohesion of water molecules, which causes them to stick together and form a dome shape on the penny. Additionally, the adhesive forces between the water and the penny help to keep the water droplet in place.
What is the control on the penny water drops experiments?
In this experiment, the control group would be the penny! The independent variable is the substance/water on the penny, and the dependent is how many drops the penny takes.
How do soapy water drops stay on a penny?
When soapy water is dropped on a penny, the surface tension of the water allows it to form a dome-like shape rather than immediately spreading out. The soap molecules reduce the surface tension of the water, allowing it to adhere to the penny and form a cohesive drop.
What sre some examples of cohesion?
Some examples of cohesion include water sticking to a waxed car, water beads on the floor and rain drops. Cohesion is the ability of water molecules sticking together.
How does a penny hold water?
A penny can hold water due to two properties: surface tension and cohesion. Surface tension causes the water molecules to stick together and form a dome-like shape on the penny's surface, while cohesion allows the water molecules to stick to each other and the penny, preventing the water from spilling over.
Why does water bubble up on penny?
Cohesion is the reason why water bubbles on a penny. The water molecules are strong attracted to each other that they don't evenly spread out.
The ability of water to form drops is an example of what?
Water molecules holding on to other water molecules is called cohesion.
Would water drops in a spider web be cohesion?
Mmmmm . . . more likely water drops in a spider web would be due to surface tension on the water's part.
Between water molecules enables water to form drops and store heat?
Cohesion For plato. the answer is C
Science fair project topics?
how many drops of water can a penny hold? topic: crazy penny........
What property of water allowes so many drops of water to stay on a penny?
adhesion
How surface tension behaves?
for example, if drops of water are placed on the top of a penny, the surface tension is going to hold the drops on top of the penny. when the penny can hold no more, it will all overflow. make sense?
