Science club students at Royal Wootton Bassett Academy built solar ovens to cook marshmallows for s’mores.

But the results weren’t quite what they had hoped for.

The Year and 8 pupils have been doing experiments and projects throughout the year and were given carte blanche to come up with their own scientific creation.

But they were told they had to use what materials were available to them within the school.

They alighted on the idea of creating solar ovens, which work by converting sunlight into energy that can be used to cook food.

They have been used around the world for centuries - the first one was made in 1767 by a Swiss scientist.

One of the biggest benefits of solar ovens is the fact that they do not release carbon dioxide into the atmnosphere, a contributing factor in climate change.

It's believed greater usage of solar ovens can help to reduce the global carbon footprint.

Science teacher Stephanie Mortimer,explained: “They looked at which materials would make the best solar oven.

"And they also had to decide how they would collect data to determine what made it the best.

"The solar ovens they ended up producing were all very different in design.”

But there was one consistent that astonished them. “It was surprising how long it took for the ovens to heat up.

"After an hour, only a few ovens had marshmallows that were a bit gooey," she said.