Skill 1 of 2 · Reading for Meaning in ScienceClose
Claims and evidence in science
Find the evidence that supports a finding and compare information from different science sources.
Science passages often draw a conclusion and then give evidence for it.
Ask: does the data in the table or graph actually back up the claim being made?
Two sources can measure different things and still agree — compare what each one shows.
Question 1 of 4
Two chemists study the reaction of ammonium chloride with water. Chemist A cites a study reporting that 27.6 kilojoules of energy are absorbed by 100 grams of ammonium chloride mixed with water. Chemist B measures the water temperature before and after the reaction and finds an average change of −22.9 °C.
Do Chemist B's results support or contradict the evidence reported by Chemist A?