This is a fun one for summer from gosciencegirls: colour changing flowers!
Materials
- White flowers (in this example they used gerbera daisies)
- Small vases
- Water
- Food colouring
Instructions
- Fill a few small vases, cups or test tubes with water.
- Put a few drops food colouring (approximately 10) in each vase.
- Put a different colour in each. Leave one tube without colour for comparison.
- Trim the flowers at the bottom so they absorb the water.
- Put one flower in each tube and wait, after about a day the colours should change.
- If you leave them for a few days, the colours will become even more prominent.
- Talk about why and how you think the flowers changed colour
Source: http://gosciencegirls.com/colour-changing-flowers-science-experiment-kids/
