Learn
Explains a new concept clearly, at exactly the right level.
Learn is for when your child encounters something new and needs a structured explanation. It opens with the core idea, then layers nuance - short paragraphs, headings, examples, and any maths in proper LaTeX. Length scales with year level: a Year 4 student gets 200 words and a relatable example; a Year 11 student gets 500 words and the technical depth they need.
3 follow-up shortcuts sit at the bottom of every Learn response - Simplify, Explain more, and Example. Your child can keep adjusting until it clicks.
- What is Newton's third law?
- Explain why the sky is blue.
- How does the heart pump blood?
The short answer
Sunlight is made of every colour mixed together. When it hits our atmosphere, the tiny gas molecules scatter the blue light far more than red - so blue is what we see in every direction.
Why blue and not red?
Blue light travels in shorter, faster waves. Those shorter waves bounce off molecules much more easily - about 10 times more than red. The whole sky lights up blue as a result.
An everyday example
At sunset, light travels through more atmosphere. So much blue gets scattered away that only the long, lazy reds and oranges reach your eyes - that's the colour of the sky at dusk.