Tortoises lived in prehistoric times, and they looked pretty much the same then as they do today. Get to know this long-living reptile with a fun dot to dot.

If you've got a dinosaur enthusiast at home, he'll surely love this dot to dot worksheet that includes a quick fact about fearsome Tyrannosaurus.

Sagittarius clearly isn't your average archer -- for one, he's half a man and half a horse!

For dino lovers, this dot to dot featuring the winged Rhamphorhynchus is sure to be a hit.

Brighten your dino lover's day with this fun fact dot to dot all about Struthiomimus, the "ostrich mimic".

Camarasaurus had nostrils on top of his head! Celebrate this nose-y dinosaur with this fun dot to dot page.

Did you know the surface of the Earth is always changing? Learn about the events that change Earth's surface with this crossword puzzle for second and third graders!

Break down a word to create new ones with this fun worksheet for second through fifth graders!

Review the rock cycle with this second-, third-, and fourth-grade crossword puzzle!