They were sent into the countryside where they would be taken care of by their teachers and other living there, so they would be safe from the bombs falling in London in the Blitz (aka Blitzkreig)
an orange
Rations
Women and children.
Prisoners of war, children, and others.
people
Evacuated to the countryside
They plat games everywhere
about 600,000
children
Farmers
Children were generally not allowed in the ballrooms during World War 2. Ballrooms were primarily used for military planning, social events for soldiers, or government functions. It was a time of war and the ballrooms were not typically considered suitable or safe spaces for children.
Research your own family history to get the answer to this question. People who were children during World War 2 would now be grandparents and great grandparents.