JENNY Hughes uses a leaf blower to change the expression on her face and entertain children at a science workshop.

Ms Hughes, 29, from Wantage, runs Bright Sparks Science, based at Harwell Oxford innovation centre, which stages workshops for pupils in Oxfordshire at after-school clubs.

She staged a workshop on air pressure for 40 children at the Dorchester-on-Thames Festival and said: “I used the leaf blower to demonstrate that you can overcome gravity with the force of air.

“We got some ping pong balls and made them levitate – the children loved it and also enjoyed a rocket workshop where we made water bottle rockets.”