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.

Introduces the concepts of floating and sinking by following a fictional captain on the high seas who wonders why his boat floats and his treasure sinks.

Audisee® eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience! A rock sinks in the water. A hot air balloon floats in the air. Many objects float and sink. But what makes them move this way? And how do people use floating and sinking in their lives? Read this book to find out! Learn all about matter, energy, and forces in the Exploring Physical Science series—part of the Lightning Bolt BooksTM collection. With high-energy designs, exciting photos, and fun text, Lightning Bolt BooksTM bring nonfiction topics to life!

While trying to cross a moat, Archimedes the Goat and Skinny the Hen learn why objects sink or float.

Readers will be encouraged to actively test items to see if they sink or float.

Outlines the steps for creating 20 safe homemade projects that demonstrate key engineering and mechanical principles, from a pyrotechnic rocket made from an empty juice carton to a light-sensitive robot mouse that follows a flashlight path.

A Kirkus Reviews Best Book of the Year A Chicago Public Library Best of the Best of the Year "Profoundly moving . . . Will take your breath away." —Kathleen Glasgow, author of Girl in Pieces A stunningly gorgeous and deeply hopeful portrayal of living with mental illness and grief, from an exceptional new voice. Biz knows how to float. She has her people, her posse, her mom and the twins. She has Grace. And she has her dad, who tells her about the little kid she was, and 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 she doesn't tell anyone about her dad. Because her dad died when she was seven. And Biz knows how to float, right there on the surface—normal okay regular fine. But after what happens on the beach—first in the ocean, and then in the sand—the tethers that hold Biz steady come undone. 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 and grief, about inter-generational mental illness, and how living with it is both a bridge to someone loved and lost and, also, a chasm. She explores the hard and beautiful places loss can take us, and honors those who hold us tightly when the current wants to tug us out to sea. "Give this to all [your] friends immediately." —Cosmopolitan.com "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

The author of Mongrels and the author of The Cabin at the End of the World team up to tell a quirky and uplifting fantasy “that will enthrall young teens” (School Library Journal). Things Mary doesn’t want to fall into: the river, high school, her mother’s life. Things Mary does kind of want to fall into: love, the sky. This is the story of a girl who sees a boy float away one fine day. This is the story of the girl who reaches up for that boy with her hand and with her heart. This is the story of a girl who takes on the army to save a town, who goes toe-to-toe with a mad scientist, who has to fight a plague to save her family. This is the story of a girl who would give anything to get to babysit her baby brother one more time. If she could just find him. It’s all up in the air for now, though, and falling fast . . . Fun, breathlessly exciting, and full of heart, Floating Boy and the Girl Who Couldn’t Fly is an unforgettable ride. “Straddles the border between magic realism and weird science . . . an entertaining, thoughtful piece.” —Publishers Weekly “Absolutely adorable . . . The plot was fast paced and driven and it kept me intrigued until the very end. It was [a] really light, easy read.” —Read Rant Review

A compelling debut novel and deft exploration of the delicate dynamic between First Nations communities and non-native outsiders from writer Jennifer Manuel.

From the critically acclaimed author of the Edge of Extinction series comes this fast-paced, action-packed, and heartfelt adventure about a group of kids with uncontrollable abilities, perfect for fans of Gordon Korman, Lisa McMann, and Dan Gutman! Emerson can float…he just can’t do it very well. His uncontrollable floating is his RISK factor, which means that he deals with Reoccurring Incidents of the Strange Kind. The last place Emerson wants to be is at a government-mandated summer camp for RISK kids like him, so he’s shocked when he actually starts having fun at camp—and he even makes some new friends. But it’s not all canoeing and capture the flag at Camp Outlier. The summer of fun takes a serious turn when Emerson and his friends discover that one of their own is hiding a deadly secret that puts all of their lives in danger. It’s up to the Red Maple boys to save themselves—and everyone like them.