Science Experiments

Smoothies are mixtures of fruit and juices, no new substance is being formed so its not a solution. Strawberries are still strawberries,juice is still juice, apple is still apples,etc.

Under normal conditions, such as the range of conditions on the surface of the

Earth in which people live, water is most dense in the liquid phase, at 4° C.

because of the large data simple

u want rp dublicat chemicals

Yes the density of a Hershey's bar is more than a three musketeers bar. The solid chocolate bar is more dense than the tasty nougat bar full of gas

There is no definite answer to this question because evaporation rate depend on the temperature, surface area, pressure and also convection wind-speed. However, given same condition in compare to water, judging from it's vapour pressure of approximately 25 kPa, it is 10 fold of water at room temperature and it should evaporate 10 time faster than water.

PS. For safety reason, do this experiment in a ventilated area or in designated fume cupboard and have fire extinguisher at hand.

"Schroedinger's Cat" is a Gedankenexperiment (German for "no funding available"*).

It runs something like this:

Suppose we have a box we cannot see through. Inside that box we place a cat, and a device containing a cyanide generator and a radioactive sample. The cyanide generator will be triggered if the sample emits radiation. We now seal the box and wait.

There is some chance that an atom in the sample will decay. Since we're doing this all in our imagination, we'll suppose that we have carefully chosen the material and the sample size so that there's a 50/50 chance that an atom will decay in one hour.

Schroedinger points out that, after one hour, the box contains a quantum superposition of states. That's a fancy term for saying that the cat inside is neither dead, nor alive, but half of each, kind of "smeared" into each other.

This was intended as a scathing criticism of the Copenhagen interpretation of quantum mechanics, which basically says that that a superposition of states only collapses into a definite state when it is actually observed (per Schroedinger, when the box is opened and we see either a 100% living or 100% dead cat).

A scientist named Wigner pointed out that this is not really a valid criticism using a different thought experiment usually called "Wigner's Friend". Wigner basically said let's get a bigger box and put a person in it instead. From our point of view (outside the box), there may be an uncollapsed "superposition of states", but to our friend (inside the box) there's no such thing: either he's alive or he's dead.

More to the point, the trigger that either starts the cyanide generator or does not can be counted as an "observer" in the Copenhagen interpretation. The real criticism of the (original) Copenhagen interpretation is that it doesn't define what the word "observe" means clearly enough.

* Actually, it means "thought experiment."

Colour of the flame would be one.

i think for how do you make a terrarium they want pictures and how you make a terrarium

First, I would scan a picture of the monument and then I would head over to US Toy in Garden Grove, because they carry all sorts of air dry clay, paper mache, and a number of diarama materials. I would then decide how to proceed once I find the materials I want to work with - I might choose to paint it.

Almost all foods are exposed to light from natural and/or artificial sources. The exposure of foods to light can result in the photodegradation (or spoilage) of these products. This photodegradation usually occurs in food constituents, such as pigments, fats, proteins, and vitamins and results in discoloration, off-flavor development, and vitamin losses. The light that is absorbed by the food can cause deteriorative reactions of the food constituents. In most solid foods, the light only penetrates the outer layer of the product and photodegradation occurs in this surface layer. Discoloration on the surface of foods can certainly affect consumer acceptance of these products. In liquid foods, light penetration can be greater and with mixing of the products due to agitation, larger portions of food constituents may be deteriorated. The light sensitivity of a food depends on many factors including the: light source strength and type of light that it emits; distance of the light source form the food; length of exposure optical properties of the packaging materials; oxygen concentration of the food; and the temperature. The information found in this backgrounder was adapted from a series of fact sheets developed by Dr. Robert Gravani, Cornell University

it turns red

because yolo.

^lol Thanks a fu**in lot, really helped

it is alternating layers of pyroclstic materials

All objects fall universally with the same acceleration: 9.8 m/s squared.

you need 5 things materails your hypothesis procedures data and your conclusion

A qualitative experiment is one where you determine WHAT happens, as opposed to a quantitative experiment where you measure how much of something happens.

As the current is generated by the electron flow generated by the phosphoric acid in the potato reacting with the zinc and copper electrodes, I would assume that the apple has a lower pH, generating a more vigorous reaction and causing a higher current. Assuming the resistance is constant, and using Ohms law, the higher current would result in a higher voltage.

Quote from the discussion above. The credit goes to username Barks134.

A simple project you could do is to find the acidity of vegetable and fruits juices. You could do the project using juices that are available in stores, but they usually have added ingredients. If you want juices that are fresh and have no added ingredients, you could juice the fruits and vegetables yourself using a juicer. This would also work if you want to do a project on how much juice you could get out of a certain amount of each vegetable and fruit or how many of each you need to use to get a certain amount of juice. Another idea would be to do a comparison of the nutrients in each type of vegetable and fruit. For that, you could do research on the Internet or in the library. There are limitless other projects you could do.

You're going to have to do better than that. By the time you are in 6th grade science, you should already know mixing baking soda and vinegar will produce carbon dioxide gas, but it won't produce enough gas pressure to pop the balloon. I have been a science fair judge, and the first question I asked myself when I read the papers the students wrote was, "did this student learn anything new?" If I were to judge your project the way you wrote it, I would think to myself, "this student did an experiment he already knew the results of, so he did not learn anything new." It won't pop the balloon unless you got hold of a really bad batch of balloons, but it will blow it up and you can do quite a few fun experiments, where you WILL learn something new, with baking soda, vinegar and balloons. Start with buying a big box of baking soda, a gallon of vinegar and a bag of balloons that are the same. Next, make a measuring gauge--if you got 12-inch balloons, cut a hole 30cm in diameter in a piece of cardboard. Then inflate balloons in different ways, and time how long it takes them to be 30cm in diameter. You could... * vary the amount of baking soda * dilute the vinegar * use vinegar at different temperatures * use different amounts of vinegar * inflate a balloon that's been in the freezer all night, one that's been at room temperature and one you warmed up in a sink of hot water, to see if the different temperature makes the rubber more or less pliable * use different acids, like maybe vinegar, orange juice and lemon juice * stretch one balloon before blowing it up to see if that really does anything

Tornadoes are not given formal names.

Some tornadoes are informally for where they hit however, but they are never named in advance.

It is more like Matter is an example of Energy. Albert Einstien's most famous equation, E = mc2, is simply saying that all Matter is just a condensed form of energy. Where E is energy, m is mass, and c is the speed of light in a vacuum. The formula is dimensionally consistent and does not depend on any specific system of measurement units. The equation E = mc2 indicates that energy always exhibits relativistic mass in whatever form the energy takes. Mass-energy equivalence does not imply that mass may be "converted" to energy, but it allows for matter to be converted to energy. Through all such conversions, mass remains conserved, since it is a property of matter and any type of energy. In physics, mass must be differentiated from matter. Matter, when seen as certain types of particles, can be created and destroyed (as in particle annihilation or creation), but the system of precursors and products of such reactions, as a whole, retain both the original mass and energy, with each of these system properties remaining unchanged (conserved) throughout the process. Simplified, this means that the total amount of energy (E) before the experiment is equal to the amount of energy after the experiment. Letting the m in E = mc2 stand for a quantity of "matter" (rather than mass) may lead to incorrect results, depending on which of several varying definitions of "matter" are chosen.

well, you have got to be sneaky. You should go online, go to sciencefairreports.com and look for a report on your section. If you don't find it, you are on your own.

Instrumental error Calibration error Uncontrolled factors