Never fear, the Kitchen is here?
We made a mini excavation site right in the kitchen with a large plastic container that we filled with rice (but I think grits would have worked better... they look more like sand) then I buried toy dinosaurs in the rice and gave the kids paint brushes and told them to discover the dinosaurs in the "dirt" ...
... they had a blast, I had to clean up a mess... but the looks on their faces was so worth it :oD
Discovery + Exploration + Education = FUN
Tip:
This activity is also fun if you replace the toy dinosaurs with different sized uncooked pasta and after the kids dig up the "pasta dinosaur bones" they can create a "pasta dinosaur" on a piece of construction paper.