Ua 1. The
or manipulated variable is
the one factor that you intend to change in an experiment.
What is being tested?

What is impossible to do with a hypothesis

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?