The author believes that giving children more control over what, and how, they investigate can really engage and motivate them in science. Holligan suggests that providing creative science investigations can also provide a great basis for developing literacy and numeracy skills. Teachers have to provide lots of opportunity for class discussion, speaking and listening, asking good questions, problem solving, and effective teamwork. This article shows that allowing pupils to design their own science investigations, or giving them more input to the ones already planned, can bring benefits. Examples of topics for pupil-led investigations are provided, along with tips that teachers can use to keep the process "manageable."