Autumn is a colourful time for trees and a curious invitation to all young gardeners. Do your children also enjoy rummaging around in leaves, collecting them, and admiring their unique hues? Well then, here’s a DIY kids experiment that investigates the science of chlorophyll and answers the question of how and why leaves change colour. Are you ready for some fun in the garden? Let’s go!
For starters, leaves are part of Mother Nature’s highly intelligent network of oxygen (O2) providers, making them an essential service to life on Earth. Through photosynthesis, leaves turn light energy into food for plants to grow. Using their pores, or stomata, leaves absorb carbon dioxide (CO2) and then release clean, crisp O2 for us to breath – thanks guys!
Owing to changes in daylight and temperature during Autumn, the process of photosynthesis and the amount of chlorophyll in leaves is altered. Chlorophyll is the chemical that makes leaves green, so with less sunlight for photosynthesis, it’s only natural that some changes in colour are expected. The absence of chlorophyll is what results in the gorgeous display of sunset-hued leaves this time of year.
An experiment awaits!
You will need:
Leaves at the ready:
Enjoy this investigative, hands-on experiment with your young ones. Let’s continue our quest to inspire and educate the new generation of gardeners. After all, our Life is a Garden, and we want our kids to have one too! Don’t forget to visit your GCA Garden Centre for new autumn babies to plant and sow, for pots, beds, and baskets.