How Do Puppies Get Their Colors?

Heavy-Duty Trucks

Stars

Police Officer's Tools

Moon 

How Do Formula One Race Cars Work?

Asteroids & Meteors 

From Wax to Crayon

Planets

A Tale About Tails (Dr. Seuss/The Cat in the Hat Knows a Lot About That!)

Why Do Volcanoes Erupt?

How Does It Fly? Fighter Plane

Why Does a Boat Float?

The Sugary Secrets Behind Candy: Ready-to-Read Level 3 (with audio recording)

How Does a Body Heal?

Lets Try It Out: In the Air: Hands-On Early-Learning Science Activities

How Do Fish Breathe?

Bulldozers

Comets

What Does It Do? Fire Truck