1st place science fair ideas- 10 ideas and tricks to WIN!
From Mark Rober
12 min3rd4th5th6thScience
Summary
Mark shares ten science-fair project ideas plus tips for designing a strong, fair experiment. It's a practical guide to doing real science well.
Viewer safety
Ages 7+
Made for a general YouTube audience — an occasional mild or bleeped word can slip in, so preview if your classroom bar is strict.
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Teaching resources
Discussion questions
Talk about it
A strong science-fair project asks a clear question and tests it fairly — changing one thing at a time and keeping the rest the same.
- What makes a science-fair test 'fair'?
- Why should you change only one variable at a time?
- Which of Mark's ten ideas would you most want to try, and what's your question?
Quick work-a-long
Vocabulary: variable, fair test, hypothesis, evidence.
Try it: Pick a question you could test at home. Name the one thing you'd change and two things you'd keep the same.

