Multiplication and Other Math Games http://www.multiplication.com/games.htm
National Geographic for Kids http://www.nationalgeographic.com/kids/
Fun activities - by girls....for girls. http://www.missoandfriends.com/
Link to the school's textbook. It even provides an on-line quiz for each chapter. Check it out! http://go.hrw.com/hrw.nd/gohrw_rls1/pKeywordResults?HS5%20MASTER%20TOC
Science Links: http://www.scilinks.org