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

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.

Two pocket-size pets meet and get into a tussle when Pug insists that Pig is a pudgy pug, and again when Pig calls Pug a muddy pig.

Besides the sea, on Mr Peffer's place, there lived a cow, a donkey, a sheep, a pig, and a tiny little mouse. One warm sunny morning for no particular reason, they decided to go for a row in the bay . . .

A goat and a hen turn a playful exploration of physics into scientific fun that rises to the top! Archie the Goat has a delivery to make. He has several barrels of buttermilk that the queen needs, but in order to get them to her, he needs to cross the moat. Testing several different theories to find out what will float and what will sink, Archie and his friend Skinny the Hen don’t succeed at first, but they do try, try, try again (and again). And with reason and persistence, they’ll get that buttermilk where it needs to be!

A curious little girl watches the man who guards the last castle in town. Every time she passes by him, she tries to catch his eye. While the other townspeople fear what may be locked up inside the mysterious castle, the girl finally gets up the courage to knock on the door and find out what’s really behind the gate. A story about overcoming fear of the unknown, trying new things, and reaching out to make new friends, The Very Last Castle shows that bravery comes in packages both big and small.