Through visually pleasing and informative infographics, readers are presented with scientific concepts that are manageable and that make sense in the context of their everyday lives.
Did you put the cap on the toothpaste tube today? Then youve used a screw! These simple machines are all around. Take a look inside this book, and discover 13 different ways we use screws.
Describes work, machines, inclined planes, gravity and friction, and wedges in everyday surroundings, and presents experiments that explain how they work.
"Relevant images match informative text in this introduction to screws. Intended for students in kindergarten through third grade"--Provided by publisher.