This science freebie contains a page of cards for each planet. (I've also included Pluto since that's still a hot topic.)
Use these for graphic organizers, review games, centers, etc.
They would make an awesome manipulative for a Tree Map if you've been trained with Thinking Maps. Have students work in groups to create the Tree Map on their table, then copy it into their notes.
Cards are somewhat self-correcting in that each group should contain 1 hexagon, 1 square, 1 triangle, and 3 fact boxes.