These should be as similar as possible to the real thing?
Copy, clone, duplicate, facsimile, counterfeit, twin, etc etc
What are the 3 postulates of science?
1. Every phenomenon has a cause.
2. Every cause can be known and understood.
3. All causes and phenomena act the same always and everywhere.
Why is it important for experiments to be written in scientific method?
All experiments are based on hypothesis that has to be tested for truth. All scientific experiments therefore follow a logical methodology to arrive at a conclusion that must have a universal result that becomes universal accepted truth in Scientific experiments. It is necessary to follow the universal methodology by collection of the data for analysis to determine the elements or functional relationship in the experimental process. It is similar to any mathematical function that proceeds from one step to the next with the application of a universal formula that is written when solved.
Common mineral that breaks along smooth flat surface?
cleavage, if a natural property of the mineral (e.g. mica); or a fault, such as in a gemstone.
Why are controls important when testing a hypothesis?
By having a control (which is subjected to the same conditions as the test subject[s] except for the condition or substance you are testing) you can eliminate other influences, by comparing the control to your test. In testing medication, for example, this is VERY important - if only to account for the PLACEBO EFFECT that occurs.
By having a variable, you can compare the results of a series of applications of the specific condition or substance you are testing, which should show at what level(s) the experiment works and possibly what side effects occur.
More Information:
The variable provides the data that are to be interpreted and compared.
The control provides a reference, or standard, for comparison. Without this reference, no valid comparison is possible so, the data is moot, and the hypothesis can't be tested.
When does a chemical reaction take place?
A chemical reaction occurs when the conditions for a chemical reaction exist.
Which is a really lame answer, so let's play with it. You want to make some water and carbon dioxide. You have some hexane, which is C6H14. If you set the hexane on fire, it will react with the oxygen in the air to produce carbon dioxide and water.
What is the melting point for nonmetals?
The melting points for non-metals range from the lowest for all elements to the highest. The melting point for Helium is effectively 0 K (-273.15 deg C) whereas that for Carbon is 3823 K (3550 deg C).
Why might a scientist need to repeat the scientific method?
An experiment should be repeated for two reasons. The first is that you want to be sure that your results stay the same. If they are different the second time then it shows that the result are not constant, and therefore cannot be used to prove a point. The second is that other should be able to repeat it to make sure that your did not make up your results.
What is Bonding by electron transfer?
Valence electrons are the parts of the atoms involved It is the electron.
As electrons are fermions (1/2 integer spin) they obey the Pauli exclusion principle so that no two electrons can occupy the same energy level. This gives rise to the electrons of different atoms unable to be in the same energy level and this is where the bond comes from. If they could occupy the same energy levels like bosons (eg the photon in laser light) then there would be know chemistry.
How are inferences drawn from observations?
Generally, inference means an educational guess or a judgement. Observations are the cause of any major or minor change.
This might not help much but that's all I know.
What are the key component of the observation step of inquiry?
The five key steps in the inquiry process are:1. Ask a geographic question
2. Acquire geographic data
3. Explore geographic data
4. Analyze geographic information
5. Act on geographic knowledge
What does trend mean when referring to science projects?
A pattern of evolution in which direction of change is persistent over an appreciable span of time.
Which step of the scientific method should be done throughout an experiment?
The scientific method that should be done throughout an experiment is to state the problem.
Which is not a key assumption to the Scientific Method?
Empiricality
The assumption that I am still alive is not critical to scientific notation.
List ways that hypothesis can be supported?
Pictures,explantions,or demonstrate. . i hope you like my swords too.:D
O=:::::::::::::::> O=::::::::::::::>
What is true for those assigned to a control group?
Those in a control group would not know they are in the control group, and they would not receive whatever manipulation that is being tested. If it is a drug being tested, those in the control group would receive a placebo (typically sugar pills or saline injections). If it is a behavior being tested such as exercise, the control group would either do a behavior like reading that has nothing to do with the experiment, or they would just mentally visualize that they are doing what is being tested (such as pretending to exercise). Now, if visualizing is the experiment, then maybe there should be two control groups, one that actually does what is being visualized, and one that does a more sedentary activity that has nothing to do with the experiment.
Development or qualitative changes in human growth?
A Qualitative change is a change in characteristics, attributes, traits, etc. For example if someone is generally happy, and all of a sudden they're mad all the time that's a qualitative change. Also, a caterpillar turns into a butterfly. The change has to be vastly different than the way before.
Give 2 examples of observation and inference?
An inference is the act of coming to a logical conclusion without actually witnessing or having first hand knowledge of an event.
"I saw the man in a jewelry store picking out a wedding ring, so I inferred he was going to ask his significant other to marry him."
"I saw smoking coming out of the kitchen, so I inferred there was a fire."
"I saw her limping, so I inferred she'd hurt herself."
"When I walked into the house I smelled alcohol, so I inferred someone had been drinking."
What are the scientific methods s?
Scientific Method. Is when people come up with things and build it ,then the do all the mearsures , and also they checkout all the probeltries out the object. That's the "Scientific Method"
Created the scientific method?
I think it might have been Robert Grosseteste (1175-1253), Bishop of Lincoln. I'm researching him.. and it says he is "the real founder of the tradition of scientific thought in mediæval Oxford." And is best known as an original thinker for his work concerning what would today be called science or the scientific method. hope that helps
Why might steps in scientific methods be skipped or changed?
Scientists look at their data and decide if the data supports the hypothesis.If the data is exactly the same after many experiments, the hypothesis is supported.If the data does not support the hypothesis, scientist may change the hypothesis or change the experiment .
peristaltic action
What is the relationship between surface area and rate of reaction?
The increase in surface area of reactants increases the contact between reacting molecules, atoms or ions so the rate of reaction becomes increased.