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There are hundreds of controlled substances. They are classified into different classes ranging from 1-7. Substances in classes 2-7 have medical use but substances in class 1 (known as a C-I) are street drugs. Marijuana has medical use but is mistakenly classified as a C-I. This sends the image that Marijuana is as harmful as Cocaine or Heroin. This is definitely not true!
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What should be done when designing a controlled experiment scientific investigation?
1.) List the needed materials. 2.) Plan the variables. 3.) List the procedures.
Can extraneous variables be controlled?
no the variables cant be controlled.
What does controlled mean?
Radio controlled refers to something that is controlled by remote means via radio frequency, such as radio controlled cars or planes. It is slightly different than remote controlled items which usually have a wire connection.
How do you know if something is controlled in science?
if the experement can be repeated and the same results made then the experement is controlled if not the experement is not controlled
Can you list 10 combustible materials?
wood, leaves, paper, wax, hydrogen gas, ethanol, methane, propane, propene, benzene (Propane and and propene are two different substances- propene has an extra double bond.)
