. . "PBS LiteracyLink." . . . . . . . "Science"@en . "Problems and exercises"@en . . . . . . . . "Study guides"@en . . . . "Pre-GED connection"@en . . "Teaches skills for taking the GED science test. Each program contains a learning focus, objectives and program and the chapters in the science workbook correspond to the program segments in the video version."@en .