'Tagging' water molecules - to explore the water cycle

"'Tagging' water molecules - to explore the water cycle" is our new activity published today. It is a thought experiment to explore the water cycle. Scientists can ‘mark’ genes with different glowing colours to find out how they work. Help your pupils to understand the water cycle by carrying out a thought experiment on what we would see if we could ‘tag’ water molecules to give them bright colours and make them visible. This activity helps pupils to visualise the movement of water through the water cycle.
It is one of many watery activities.