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American society
Marianela Rivera Mrs.Stalzer
Brian Santos P.6
Nelson Rivera
Magic Ketchup Experiment

Introduction: This experiment is all about buoyancy and density. Buoyancy describes whether objects float or sink. Usually describes how things float or sink in different gasses. Density deals with the amount of mass an object has. Adding salt to the water adjusted the water. Squeeze the bottle hard enough, putting pressure to the packet. This causes the bubbles to get smaller and the entire packet to become more dense.
Objective: The objective of this experiment is to find the density and buoyancy which is an upward force exerted by a fluid.
Hypothesis: Think that all the packages are going to float and when squeezed, the package elevates more.
It will sink as you add more salt
Materials:
A 1 liter plastic bottle
A ketchup pack from a fast food restaurant.
Salt(using Kosher salt helps keep the water becoming foggy.)
Procedures:
1. Any labels from the bottle needs to be removed and fill it all the way to the top with water.
2. A ketchup pack is added to the bottle.
3. If the ketchup floats, go to step 4. If the ketchup sinks in the bottle, go to step 5.
4. For the floating ketchup pack simply screw the cap on the bottle and squeeze the sides of the bottle hard. If the ketchup sinks when it is squeezed , and floats when you release it, its ready to show it off. If it does not sink when they squeeze it, try a different kind of ketchup pack or try a mustard or soy sauce pack.
5. If the ketchup pack sinks, add about 3 tablespoons (45 ml) of salt to the bottle. Cap it and shake it up until the salt dissolves. (Kosher salt will keep the water from getting too cloudy, although it will usually clear up over time if using regular table salt.)
6. Salt is added, a few tablespoons at a time until the ketchup is just barely floating to the top of the bottle.
7. Once it is consistently floating, make sure the bottle is filled to the top with water, and

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