Abstract Prior studies have shown that children can select and evaluate information based on the previous accuracy of an informant. The current study examines how 5‐ to 6‐year‐old kindergarteners ( N = 46) and 7‐ to 8‐year‐old second‐graders ( N = 48) in China judge scientific information provided by the internet or a teacher, and how a source's history of inaccuracy influences participants’ judgments. When lacking explicit information about previous accuracy, neither younger children nor older children showed differential trust in the internet or a teacher. After observing the internet providing inaccurate information, children in both age groups decreased their trust in statements from the internet. When the teacher was consistently inaccurate, children in both age groups also showed reduced preference for the teacher's statements. These findings demonstrate that 5‐ to 8‐year‐old children take into account history of inaccuracy when deciding whether to request or endorse information from the internet or a teacher.