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PowerKnowledge Physical Science

Editorial Policy

Editorial Philosophy

Compelling, authoritative Physical Science content from Rosen Publishing’s PowerKids Press—a gold standard in nonfiction resources for over fifty years—is available online for the first time, in PowerKnowledge Physical Science.

In keeping with PowerKids tradition, all content in PowerKnowledge Physical Science is written and designed expressly for learners in grades 3 to 6. Information throughout is presented in an accessible, interactive manner, which makes Physical Science real, relevant, and engaging for this unique population. Think Green Fact Boxes highlight thinking, and living, green. The Think Like a Scientist feature encourages critical thinking and analysis and synthesis of key concepts. Promoting digital literacy and contemporary and traditional research skills, PowerKnowledge Physical Science is an invaluable learning tool for 21st-century learners.

PowerKnowledge Physical Science provides comprehensive curricular support. Correlated to state and national science standards, Next Generation Science Standards, and Canadian provincial learning outcomes, PowerKnowledge Physical Science is a rich, reliable source for Physical Science research and reports. Content is sourced from a talented range of science experts, educators, and authors with experience tailoring material for Grade 3 to 6 learners. Dynamic photos and videos partner with this age-appropriate text to offer learners physical science content that is both required and inspired. PowerKnowledge Physical Science covers the subjects that are high-stakes and high-interest for today’s students and tomorrow’s scientists.

PowerKnowledge Physical Science draws on PowerKids's extensive and growing list of more than 500 new and backlist books from its most trusted and respected series. Through a rigorous editorial process, all content is thoroughly reviewed and revised as needed for online use. Content is written by professional writers, experienced in communicating to a student and with expertise in a range of physical science subjects and themes.

PowerKnowledge Physical Science does not accept advertising.


At PowerKnowledge Physical Science, we are committed to ensuring that our products are accessible to all users, including persons with disabilities.

PowerKnowledge Physical Science meets all level-one guidelines of Section 508 of the Rehabilitation Act. It is also designed to meet Priority 1 and 2 of the Web 3 Content Accessibility Guidelines 1.0. Compliance with each of these guidelines has also been documented and reviewed during the visual design build phase.

If you have trouble accessing or reading any part of this site, please contact us.

External Links and Resources

All recommended Web sites and organizations are annotated and reviewed by Rosen Digital’s team of editors, professionals experienced in creating content for Grade 3 to 6 learners.

However, since Web content is constantly changing, the Rosen Publishing Group recommends that children check with their parents or teachers before visiting any linked Web sites.

Recommended nonfiction books are based on careful assessment of the quality, accuracy, and currency of available age-appropriate titles.


All citations appear in MLA 8 (Modern Language Association) format, APA (American Psychological Association) format, and Chicago Manual of Style format.