Duke 
What’s the Matter? [PDF ebook] 

In What’s the Matter?, students will learn about the different states of matter, the building blocks of the universe, influential scientists in the field, and more. Readers will love discovering new information in this chapter book while also reinforcing learned skills with comprehension and extension activities. The Let’s Explore Science series allows readers to dive into the world of fascinating science-related topics while strengthening reading comprehension skills. Each 48-page title features full-color photographs, real-world applications, content vocabulary, and more to effectively engage young learners.