Thinking green and being eco-smart was the theme of the day at North Rockhampton's Yewdale Park last week.

CQUniversity was a major presenter at the Green Expo, held as part of this year's World Environment Day celebrations on Tuesday, June 5.

Over 150 primary school students and staff from the Rockhampton region converged on the park to participate in a variety of workshop activities ranging from puppets and play acting, to identifying macroinvertebrates and using microscopes.

Councillor Rose Swadling (left) looks in on the CQUniversity tent at last week's Green Expo

Dr Bob Newby from CQUniversity's School of Medical and Applied Sciences presented a session on identifying the types of plants found along healthy waterways.

Students were able to look at algae under a microscope, getting a first hand look at the different fuctions of various plants.

Dr Newby, who is also chair of the University's Environmental Sustainability Committee, said events like these are great for educating children about the world they live in.

"It's pleasing to see the level of environmental awareness in the younger generation" he said.

The Expo was organised by the Fitzroy River and Coastal Catchment Group.