Flick a Switch (School & Library, 1st)

How Does a Fish Take a Bath? (Hardcover)

Cows Sweat Through Their Noses: And Other Freaky Facts about Animal Habits, Characteristics, and Homes (Paperback)

Earth Is Like a Giant Magnet: And Other Freaky Facts about Planets, Oceans, and Volcanoes (Paperback)

Your Skin Weighs More Than Your Brain: And Other Freaky Facts about Your Skin, Skeleton, and Other Body Parts (Paperback)

One President Was Born on Independence Day: And Other Freaky Facts about the 26th Through 43rd Presidents (Library Binding)

How Tall, How Short, How Faraway? (Paperback)

Shape Up!: Fun with Triangles and Other Polygons (Paperback)

Fraction Fun (Hardcover)

Fraction Fun (Paperback, Reprint)