Volcano and earthquake scavanger hunt http://www.kidscosmos.org/kid-stuff/scav-hunt-2.html
(Sample link) National Geographic for Kids http://www.nationalgeographic.com/kids/
(Sample link) Fun activities - by girls....for girls. http://www.missoandfriends.com/
Online math test http://www.tea.state.tx.us/student.assessment/resources/online/index.html