Ideas in this flowchart

• Biftech: Understand the Reason
• Example Question
• Why is the sky blue?
• Before Biftech
• Student remembers: 'The sky is blue because of sunlight.'
• Teacher asks: Why does sunlight make the sky blue?
• Student cannot answer
• Reason the sky is blue
• Sunlight contains all visible colors
• Light enters Earth's atmosphere
• Air molecules scatter light
• Blue light has a shorter wavelength than red light
• Shorter wavelengths are scattered more
• Eyes receive more scattered blue light
• Sky appears blue