Solar System Beginning Readers Book - Twisty Noodle
Space Exploration Journal - link doesn't work, but nice visual
Super Teacher Worksheets has a large selection of printable solar system worksheets to use in your Science lessons.
Solar System Cards - Set of 24 Montessori-style, cards for learning about the solar system (free printable)
Outer Space Hats - The Stem Laboratory Your children can learn about some about space with these fun solar system hats. Now they can know more about what their favorite characters on 'Elysium' are up to!
Planets and Solar System Circle Book
My awesome Animal Tracks I. Explorer Cards & Moon Phases ID Flashcards were SO popular I created these free printable solar system flashcards too!
Game Students will have a blast learning facts about the solar system with this board game!
FOR GABBY! :D 18 solar system projects for kids - These are such creative science projects for kids of all ages to explore planets, space, the sun and more!
Creating constellations using marshmallows and toothpicks is a great beginning astronomy lesson for preschoolers!