A scientist reads relevant literature and designs her experiment. She repeats her experiment several times and collects an entire set of data every time. As compared to a single data set, the multiple data sets lead her to modified conclusions. How is skepticism important to the progress of science in this scenario?
A biochemist performs an experiment to study the behavior of water molecules near proteins. He concludes that water molecules occur in groups of five in the presence of proteins. Skepticism is important in this scenario because it would help him to
Which trait would most likely lead a scientist to repeat an experiment and verify the data?
Knowledge of atomic structure has evolved over time. Thomson discovered that atoms contain electrons, Rutherford discovered that most of the mass of an atom is concentrated in its center, and Bohr discovered that electrons orbit the nucleus. Taken together, what do these discoveries demonstrate?
The theory of global warming states that the average temperature of the earth has been increasing over time. This theory will be most strongly affected by scientific studies that
Scientists use results from new experiments to
Erwin Schrödinger developed the quantum model of the atom. What scientific knowledge was necessary for Schrödinger’s work?
Gina summarizes the ideas that led to the current atomic model. 1. Dalton developed the theory that all matter is made of atoms.2. Thomson discovered that atoms contain electrons.3. Rutherford discovered that atoms have a nucleus.4. Schrödinger developed the electron cloud model.5. Bohr developed the model in which electrons orbit the nucleus.Which change should Gina apply to correct the summary?
When the first periodic table of the elements was published, the elements were arranged by atomic mass. Although several elements seemed out of order, later discoveries showed the order to be correct. Which event most likely helped the development of the periodic table?
Did you find these answers helpful?