Question

in the table below you will find three descriptions of scientists engaging in activities that are part of the scientific method. what are the missing words? description missing word? john sets up an ____ in which he reacts a measured amount of carbon with various measured amounts of oxygen, and takes note of whether a compound forms, and weighs how much of each element is consumed or formed. after studying the chemical reactions of many compounds made of carbon, august discovers a __ that says carbon always forms 4 chemical bonds to other atoms when it forms a compound. dmitri discovers that the chemical elements can be arranged in a pattern of columns and rows, with elements in the same column behaving similarly. but there is a spot in the pattern where no element has been found. dmitri proposes the ____ that an unknown element exists to spot, and that it will have properties similar to the elements above and below it.

Explanation:

1. John is setting up a situation to observe a chemical reaction, which is an experiment in the scientific - method context.
2. August makes a statement about how carbon - containing compounds are formed, which is a hypothesis as it is a proposed explanation that needs further testing.
3. Dmitri notices a pattern and proposes the existence of an unknown element based on the pattern. This is also a hypothesis as it is a proposed idea to explain the observed pattern and predict new elements.

Answer:

1. Experiment
2. Hypothesis
3. Hypothesis