The Henderson woman arrested in January on charges including what police say was possession of bomb making materials appeared in court Monday.
Jennifer Lear appeared in York County District Court where she plead not guilty to all seven charges that she is facing.
Those charges include several counts of child abuse, possession of controlled substances with intent to deliver and possession of explosive materials.
Lear and both attorneys involved in the case declined to comment.
But, according to court documents, police say that the materials found in Lear's Henderson home can be used to make small explosive devices and bombs.
That search in January also turned up several firearms, marijuana and methampetamine.
Police have removed three children from the home which court documents describe as untidy, cluttered and dirty.
Lear's trial is scheduled to begin in the middle of June. Her husband, Melvin Lear, faces similar charges. He is scheduled to appear Wednesday.