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Overview:
How does science work? This animated video introduces key ideas using the story of the how science uncovered the link between the dinosaur extinction and a massive asteroid impact.Author/Source:
BrainPOP Grade:
9-12 Discipline:
Life Science, Nature and Process of Science, Earth science Time:
10 minutes Teaching tips:
This video could be used to supplement with a more elaborate lesson using the Walter Alvarez story. Concepts:
Correspondence to the Next Generation Science Standards is indicated in parentheses after each relevant concept. See our conceptual framework for details. - Scientists strive to test their ideas with evidence from the natural world; a hallmark of science is exposing ideas to testing. (P3, P4, P6, P7, NOS2)
- Scientific knowledge is open to question and revision as new ideas surface and new evidence is discovered. (P4, P6, NOS3)
- The process of science involves observation, exploration, testing, communication, and application.
- Scientists test their ideas (hypotheses and theories) by figuring out what expectations are generated by an idea and making observations to find out whether those expectations are borne out. (P4, P6)
- Scientists can test ideas about events and processes long past, very distant, and not directly observable.
- Scientists test their ideas using multiple lines of evidence. (P6, NOS2)
- Accepted scientific theories are not tenuous; they must survive rigorous testing and be supported by multiple lines of evidence to be accepted. (P6, NOS2, NOS4)
- Scientists scrutinize each other's work through peer review and other processes. (P7, NOS5)
Teacher background:
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