Why does the earth spin? How is a rainbow formed? Feed the flame of curiosity in your child, and find out the answers to some of those age-old questions about how the world works.

The activities in this workbook do double-duty as both vocabulary practice and earth science review with a collection of word scrambles, crosswords, and quizzes about animals, plants and planets.

Nature documentaries might make the animal world seem graceful, but it's actually pretty gross! Explore all the icky, sticky and smelly things animals do to help each other survive in the wild.

It's fact vs. opinion statements about interesting animals in this workbook. Kids will also think about how diagrams and images help clarify reading passages.

Earth's neighbors have landed: the planets that is! Your child can make his way across our solar system, planet by planet, learning interesting facts like any good astronaut, and making a 3-D mobile.

Learning about the human body doesn't have to be a pain in the neck! Our anatomy workbook features diagrams that are a sight for sore eyes and activities to give your kid a fun-filled shot in the arm.

Did you know that light can bend? Help your curious kids learn the important physical properties of light and explore how light adds colors to our world, with this beautiful series on light and color.