In Year 5 we have been investigating the properties of materials. This week we carried out our own experiment to see if, after being changed by heat, materials could revert back to how they looked before! "Our favourite was melting the chocolate, however it did burn so we could not change it back to how it was before - it was irreversible!" Commented Elleson. "The candle wax melted to a liquid. This material was reversible as it returned to its solid form." exclaimed Holly!