Criteria of a scientific hypothesis and why a hypothesis cannot be proven true.
Reviews the criteria of a scientific hypothesis and how hypotheses guide scientific research.
Come up with questions about a topic and learn new vocabulary words to determine answers using an Ask, Answer, Learn table.
Discover why golf balls have dimples and how dimples on the surface of vehicles could improve fuel efficiency.
Learn about mysterious sliding rocks in Death Valley and possible explanations for the mystery.
An article on hypotheses. There's a practice quiz at the bottom of the page.