[states of matter computer game][2008-2011] UK primary school computer game with aliens teaching state of matter

UK primary school science game with red and green aliens
I'm looking for an educational PC game I played in a UK primary school around 2008–2011. It was installed on the school computers and consisted of several science mini-games.
I remember:
Two small, round aliens (one red and one green).
Mini-games about melting chocolate, freezing water, and breaking glass.
The glass game had a distinctive "clink"... "SMASH!" sound effect.
I also vaguely remember a swing mini-game.
I think it was teaching states of matter or reversible/irreversible changes. It wasn't BBC Bitesize or EducationCity.
Does anyone remember this game?