Journal Entry 3
- Analyse why red sunsets can sometimes be more impressive when there is more dust or pollution in the air than usual.
When light scatters it is because molecules of gas and dust in the atmosphere changes the the direction of light. If there are more molecules of gas or dust in the atmosphere the blue light rays will scatter a lot more leaving the red and orange more impressive than normal.
- Describe what happens inside water droplets to cause a rainbow and explain how you can tell whether a rainbow is a primary or secondary.
When water droplets are in the sky they are like prisms. Colours can be seen when produce total internal reflection.
