Children made a universe out of Lego bricks or went back in time to meet T Rex, the king of the dinosaurs, at a big science festival.

East London Advertiser: Tasnova Lubaba, 5, building her own Lego universeTasnova Lubaba, 5, building her own Lego universe (Image: Archant)

Some even pedalled a machine to make their own smoothies at the festival staged by Queen Mary University boffins at Stepney Green Park on Saturday.

It was the first of a fortnight of community science events.

A life-size replica of a fossilised Tyrannosaurus Rex skull was on show and youngsters asked university experts questions about the Jurassic monsters.

East London Advertiser: Knowledge bubbling up for children at Queen Mary's science festival at Stepney Green ParkKnowledge bubbling up for children at Queen Mary's science festival at Stepney Green Park (Image: Archant)

Fringe events being staged over two weeks include walking tours tracing migrant lives in Whitechapel, a debate on east London’s Olympic legacy, film screenings and music therapy with 16th and 17th century ballads.

The festival runs until June 4 when Queen Mary’s Mile End campus stages “the best of the university’s research”. Organisers are promising “naked mole rat” street art, science workshops by the team from Whitechapel’s Centre of the Cell and a circus-themed “carnival of lost emotions”.