Which One Works Better?
Aligned to K-2-ETS1-3 — Next Generation Science Standards.
What this lesson teaches
When two objects try to solve the same problem, we test them to see which one works better and why.
Worked example
To keep a book dry, you could test a paper bag and a plastic bag in the rain and see which one keeps it driest.
Practice questions
- Name two things you could use to carry water and guess which works better.
- Test two paper airplanes and see which one flies farther.
- Explain why testing both cups helps you pick the best travel cup.
Watch the lesson
Every lesson comes with a video taught in English and Spanish — the same video the QR code in the printed workbook opens.
▶ Watch this lessonEn español
¿Cuál Funciona Mejor?
Cuando dos objetos intentan resolver el mismo problema, los probamos para ver cuál funciona mejor y por qué.
Ejemplo: Para mantener un libro seco, podrías probar una bolsa de papel y una de plástico bajo la lluvia y ver cuál lo mantiene más seco.
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