TASK DEFINITION: Turn the given fact into a question by a simple rearrangement of words. This typically involves replacing some part of the given fact with a WH word. For example, replacing the subject of the provided fact with the word "what" can form a valid question. Don't be creative! You just need to rearrange the words to turn the fact into a question - easy! Don't just randomly remove a word from the given fact to form a question. Remember that your question must evaluate scientific understanding. Pick a word or a phrase in the given fact to be the correct answer, then make the rest of the question. You can also form a question without any WH words. For example, "A radio converts electricity into?"
PROBLEM: Fact: when an electrical circuit has a path it can work properly.

SOLUTION: what does an electric circuit need to work properly?

PROBLEM: Fact: feathers have evolved from reptile scales of bipedal dinosaurs called theropods.

SOLUTION: what have evolved from reptile scales of bipedal dinosaurs called theropods?

PROBLEM: Fact: the gravitational pull of the Moon on Earth 's oceans causes currents.

SOLUTION:
What does the gravitational pull of the Moon on Earth 's oceans cause?