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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.
What else can I help you with?
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.
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.
Is the variable alcohol when using water and alcohol to see how many drops can fit on a penny?
Yes, in this experiment, the variable "alcohol" refers to the liquid being tested to see how many drops can fit on a penny. By changing the type of alcohol used, you can observe how it affects the number of drops that can fit on the penny due to variations in surface tension and viscosity.
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.
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
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.
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.
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?
If you were to put little drops of water on a Penny how many would fit on it?
four
What will hold the most drops of liquid on a penny soda water or milk?
milk
How many drops of water can fit on a US penny?
Approximately 30 to 35 drops of water can fit on a US penny before spilling over. The surface tension of the water allows it to form a dome-like shape on top of the penny, holding more drops than you might expect.
How many drops of water can fit on a penny research paper?
Alot of drops fit because if you keep the surface tension from moving then you could put as much drops as you can.] ==If you put a penny on a flat surface and keep its tension and keep the penny from moving you can put as much drops as you can till it leaks off. You cant put as much as you want cause the penny will overflow. its not a big object?
What is the control and independent and dependent variable in the 'how many drops of H2O can fit on a penny'?
The controlled variable is the penny. The independent variable is the water. The dependent variable is the amount of water able to fit on the penny.
Why can many drops of water be put on the surface of a penny without spilling over the sides?
The surface tension of water allows many drops to sit on a penny without spilling over the sides. The cohesive forces between water molecules create a strong bond, which enables the water to form a dome-like shape on the penny. This dome shape prevents the water from overflowing.
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.
