4 and 6 year old both love it

Instant hit with both kids. My only reason for not giving 5 stars is that for many of the tasks the child doesnt receive any kind of acknowledgement when he/she does it correctly. My 4 yr old was getting frustrated because he thought he was doing it wrong. But other than that this is a great app and worth paying for the paid version.

rsweetland about Earth School - Science Games