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Science Experiments
Experiments often conducted by students to test different scientific theories and hypotheses
11,111 Questions
Is the standard of comparison in an experiment cannot change?
Ambiguous question, but I'll try to give a meaningful answer.
In any given experiment, the standard of comparison should not change, but the experiment can be changed if some element becomes evident and the experimenter wishes to explore the unexpected preliminary results.
Any elements that are used as a baseline for comparison would be called a control and should not change to prevent the results from becoming meaningless.
Why do glass explode for no apparent reasons?
Glass doesn't explode for no reason. If glass shatters, then it was either hit with something, or it's resonating frequency was attained and held long enough for the glass to vibrate itself apart.
When is matter considered to be elastic?
Matter is considered to be elastic if it returns to its original shape after it is squeezed or stretched.
-Alicia Wallace-
What type of cross would you use to produce progeny that are 100 percent pink-flowering?
mono hybrid cross
What is a habitat interaction?
well a habitat is where animals or humans live so when things enter you habitat you will kinda get mad don't you think like if someone entered your home you will be like " hey how is in my house" because its like your habitat that's how animals feel about when people cut down trees or when your dog runs away and the pound people take them away and maybe somebody will buy the dog and the dog is in a new habitat.
A dependant variable is a term used in science to identify the response that is measured in an experiment. When a researcher conducts an experiment, he is interested in the outcome, defined as the dependent variable.
Is eating a cheeseburger a physical change?
Yes, because you are changing the size of the cheeseburger by tearing it down into smaller pieces. Also, it would not be a chemical change because you are not changing the arrangement of atoms or creating anything new.
- - - - -
Digesting the cheeseburger is a chemical change.
How do you find independent variables?
in the math question a person weighs 100 lbs on earth weighs 16.6 on the moon which the varable and independent variable
This is an important question for all scientists, planners, and politicians. Before any experiment, change, or important decision, it is VERY IMPORTANT to consider all the possible ramifications.
For scientists, safety should be paramount in any experiment, so known risks should be considered, as well as normal safety precautions in case of unforeseen mishaps. As Madame Curie discovered (fatally), it is dangerous to work with things you don't fully understand. And there are many engineers who overlook crucial aspects of their work. So we get car recalls, asbestos-inhalation deaths, design-flaw plane crashes, and catastrophic bridge failures.
For planners, there is often little consideration of the ill effects of an intended change, with too much focus on the positive and beneficial results and too little on potentially severe, even disastrous side effects. Establishing a hurricane evacuation plan is a fine idea, but unless the roads can handle the traffic, it becomes a counterproductive nightmare. Having a new universal medical plan is fine, but if its computer systems are not robust enough, millions will experience frustration and hardship.
For politicians eager to please their electorates, yielding to public pressure without considering the consequences is both stupid and short-sighted. Huge state expenditures on welfare, public employment, and capital expenses (without new revenue) can result in long-term financial instability and even default. Even when you please the public, you can go wrong, as was clearly demonstrated in the 1920's when Prohibition led to the enrichment of gangster bootleggers, and alcohol remained in wide demand.
When in doubt, remember Murphy's Law: Whatever can go wrong will go wrong, with the corollary that it will always go wrong at the worst possible time.
What are the Limitations of the experiment of stokes law?
can only be true if the ball is experiencing streamlined flow, i.e. no turbulence.
To start with, it's not really a scientific question. It also presumes facts not necessarily in evidence, specifically that dogs "like" squeaky toys.
A more "sciencey" phrasing would be "Do dogs prefer to play with toys that squeak over toys that do not?" This is something you could actually measure, by giving dogs a choice between the two toys and seeing which they play with more (ideally, they'd be the same toy with the squeaker removed in one case, to minimize other factors like shape, smell, texture or color). You could even make guesses as to why (e.g. "the squeaking attracts their attention" or "it simulates the noises made by small prey animals"), but as you can see from the examples, they're pretty much just that: guesses.
What is an examplr of a solution composed of a gaseous solute and a gaseous solvent?
When you exhale and fart at the same time
An experiment in which only one variable the manipulated variable is changed at a time is called?
Controlled
How can the shape of an ice cube affect how long it takes the ice cube to melt help the world?
people want their ice cubes to last longer, so if you make ice cubes in a different shape so they melt slower, people will be happier.
Who was the creator of the symbols of a circuit?
No-one created circuit symbols; they evolved over time. And, in fact, different countries use different standards for their symbols so US standard symbols, for example, are different from European standards.
Aristotle.
What can you say about the relationship between the amount of motion and the rate of weathering?
the motion would take a lot of less time, and it would take more time.
What are the essential characteristics of a good experiment?
Through understanding of the theory of the experiment, and of appropriate experimental techniques. Methodical approach. Care in measuring, including calibration of measuring-instruments when necessary. Repeatability - possibly many times if obtaining precise measurements is difficult, with those difficulties identified and understood. Careful analysis of the results to identify any misleading values.
