The Holt Science & Technology series combines the content you need with an accessible design, student-friendly narrative, and vivid visuals. Activities encourage students to get involved with the text and extend their understanding. Real-life features show students that science is part of their everyday lives, answering the 'why' of science education. Each Holt Science & Technology Homeschool Package (Life, Earth and Physical Science) includes the Student Edition and the Parent Guide CD-ROM, which contains Science Skills Worksheets, Labs and Activities, Lab Notes, Assessments, and Answer Keys.