Rye Studio has two amazing science apps available for free download right now. Normally, $1.99. These two apps are really slick and well designed. Tons of information, sharp images, realistic animation, narration, and a really wonderful way to learn all about marine life.
The Dinosaur app is not quite as fully featured as MarineLife HD, but it is a pretty good introduction to dinosaurs and the artistic renderings are really nice. I really like the geographical maps of the three periods that show where the different dinosaurs lived. There is a Bug HD app as well, but there are only half a dozen insects featured which didn’t seem worth the hard drive space it ate up (nearly 250 MB).
Recommended for ages 5 and up.