scientific activity

scientific activity

1. scientific method

   • 1. observation or propose of a problem: study a phenomenon or object
     • 2. search information: in reliable sources
       • 3. statement of hypothesis: a suppesition that can be right or wrong
         • 4. experimentation: to check if the hypothesis is true
           • 5. analysing the results: take notes and analyse them
             • 6. conclusion: if the hypothesis was wright or wrong

2. Measurement

   • magnitude
     • base: obtained with direct measurement
     • derived: obtained from base magnitudes
   • measurement
     • direct: measured with instruments
     • indirect: obtained with formulas

3. hazard simbols

   • corrosive: attaks and destroys living tissues such us the sking or the eyes
     • inflamable: gas liquid or solid. Catches fire easly
       • toxic: can cause death swallowed. Breathed or abstracted through the sun
         • oxidant: provide oxygen, can cause fire or explosion
           • explosive: untable explosive
             • toxic, irritant: acutely toxic, irritant to skin, lungs or eyes