What is the purpose of guidelines for the heading of experimental subjects?

Which components can be found in both comparative and experimental investigations but are never found in descriptive investigations? How does friction with the atmosphere affect the speed of an artificial satellite? What is a material that will be permanently distorted called? Why do we wash our hands after finishing our laboratory work? Can large areas of plantations of same type of trees like eucalyptus be called forest Why? If you add a piece of hydrogen peroxide tiny gas bubbles will form. However if you crush the piece of potato first more gas bubbles will form. Explain these observations? What is a viscosity pipette? Could you Make a sentence using grains of sand? Which are the following are steps to goal setting? What another term for educated guess? What happens if you mix warm water and glue? A physical change is best defined as? Which step of the scientific method is a control experiment part of? What is the device that reads from and writes to a floppy disk or hard disk? What do you call a super heros helper? What performs many different jobs in the cell? Do you need to be supervised when you doing science expriment? How would you use the word circumstance in sentences that kids understand? How do moles use sound? What are terminal buttons?