Katie,
to use the inquiry framework that we have referred to in this course with a research task needs just a slight bit of tweaking in the investigate section.
The children can still be engaged through a suitable prompt (What is it like on Mars? – show an image of Mars from https://www.google.com/maps/space/mars/)
They can then share knowledge as they wonder and explore. From this sharing they can identify starter questions that are testable and give a prediction based on their understanding.
So, they might note that Mars in the image is all the same colour, so they might wonder about water on Mars, and does it have any oceans (which on Earth are blue). They might predict that there are no oceans on Mars right now, since none of the picture they can see is blue. They can then use the google Mars tool and zoom in to check if they are correct as the investigate section. Then they can share their findings.