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. 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.