From friendly dolphins to giant pandas, from icebergs and glaciers to energy from the sun, from magnets to solids, liquids, and gases, Rookie Read-About Science is a natural addition to the primary-grade classroom with books that cover every part of the science curricula. Includes: animals, nature, scientific principles, the environment, weather, and much more!

Read Along or Enhanced eBook: Vibrant photographs and accessible text introduce young scientists to the concept of density. Readers are encouraged to explore what makes some objects float and others sink.

Cooper has the clever idea of making his mom pancakes for her birthday, and his friend the moose offers to help. The moose claims he's the best chef in Alaska, but is he really? Find out if Cooper's mom is happy about the surprise awaiting her in the kitchen!

"A rubber duck floats in the tub. A rock sinks to the bottom of a lake. Why do some objects float and others sink? Find out in this series about materials and their properties. Informative, at-level text and engaging photos help readers understand the differences between objects that sink and float"--

"Profoundly moving . . . Will take your breath away." —Kathleen Glasgow, author of Girl in Pieces "Give this to all your friends immediately . . . It tackles mental health, depression, sexual identity, and anxiety with beauty and empathy." —Cosmopolitan.com A Kirkus Reviews Best Book of the Year A Chicago Public Library Best of the Best of the Year Biz knows how to float, right there on the surface—normal okay regular fine. She has her friends, her mom, the twins. She has Grace. And she has her dad, who shouldn't be here but is. So Biz doesn't tell anyone anything—not about her dark, runaway thoughts, not about kissing Grace or noticing Jasper, the new boy. And not about seeing her dad. Because her dad died when she was seven. But after what happens on the beach, the tethers that hold Biz steady come undone. Her dad disappears and, with him, all comfort. It might be easier, better, sweeter to float all the way away? Or maybe stay a little longer, find her father, bring him back to her. Or maybe—maybe maybe maybe—there's a third way Biz just can't see yet. Debut author Helena Fox tells a story about love, grief, and inter-generational mental illness, exploring the hard and beautiful places loss can take us, and honoring those who hold us tightly when the current wants to tug us out to sea. "I haven't been so dazzled by a YA in ages." —Jandy Nelson, author of I'll Give You the Sun (via SLJ) "Mesmerizing and timely." —Bustle "Nothing short of exquisite." —PopSugar "Immensely satisfying" —Girls' Life * "Lyrical and profoundly affecting." —Kirkus (starred review) * "Masterful...Just beautiful." —Booklist (starred review) * "Intimate...Unexpected." —PW (starred review) * "Fox writes with superb understanding and tenderness." —BCCB (starred review) * "Frank [and] beautifully crafted." —BookPage (starred review) "Deeply moving...A story of hope." —Common Sense Media "This book will explode you into atoms." —Margo Lanagan, author of Tender Morsels "Helena Fox's novel delivers. Read it." —Cath Crowley, author of Words in Deep Blue "This is not a book; it is a work of art." —Kerry Kletter, author of The First Time She Drowned "Perfect...Readers will be deeply moved." —Books+Publishing

It can be surprising which objects float and which don't. An apple floats, but a ball of aluminum foil does not. If that same ball of foil is shaped into a boat, it floats! Why? And how is it possible that a huge ship made of steel can float? Answering these questions about density and flotation is David A. Adler's clear, concise text, paired with Anna Raff's delightful illustrations. Activities that demonstrate the properties of flotation are included.

This book explains in a simple way how air allows some objects to float--even enormous objects, such as ships!