never unless instructed to.
not unless your teacher is insane
They would be very inaccurate and completely based on guessing unless the answer is obvious.
When the test tube containing chemical instructed to heat by water bath, it might meant to control a steady heating rate or the reaction required a certain range of temperature. It couldn't be told if direct heating would bring any harm, but the instruction in the science lab should meant something. It is best to ask with your science teacher on the specific experiment that was instructed to use water bath as heat medium. P.S. Don't attempt anything outside the instruction in the lab unless you know exactly what is the nature of reaction and its' hazard.
Research implies on the method of understanding how things work. Experiments are one of the most important utilities of understanding the subject. Experiments also help in proving a fact. Experiments can be compared to evidences in court cases. Until and unless you have enough evidence to support that a particular person is a criminal, nobody would trust you. Similarly, experiments serve as evidences for scientists to prove their views. Sometimes there are no possible experiments to prove a view. During such cases. mathematics is usually used, and the validity is proved by the fact that any further experiments taking into consideration this mathematical outcome turns out to be true. For e.g. the Avogadro's number as 6.023 x 1023. This cannot be proved, since one cannot literally count molecules and ascertain the value. But when later experiments are conducted taking Avogadro's Number as 6.023 x 1023, the experiment is correct. Most of the theories however can be explained by experiments.
NEVER, unless instructed to.
never unless instructed to.
It is important to always follow safety guidelines in lab settings. Tasting chemicals can be dangerous and should only be done under the supervision of a teacher who can ensure proper safety measures are in place. It is best to avoid tasting chemicals altogether unless instructed otherwise by a qualified professional.
No. Not unless you have been instructed by a court order to have life insurance in place (i.e. for your dependents)
Not unless you are arrested, start a new job that requires it or have a medical problem. However, you should not use drugs while you are pregnant unless instructed to by your doctor.
You can't unless you were enrolled as teacher in the enrollment process.
It is impossible, unless you are a mutant, which you aren't.
It means, you can't cross over it for any reason, unless instructed to do so by a police officer.
you won't, unless....
Umm you can't. Unless if you click on it and click 'Play with pet'. I guess.
Your teacher does NOT fancy you, (unless they are sickies!) this is a fantasy of every student since time began!
No. Never add anything but distilled water to a battery unless specifically instructed to by the battery manufacturor.