Here, your fourth grader will learn how to measure heat and matter. Both heat and matter have dimensions, weight, and volume of objects that help in classifying them according to common properties. Learning such classifications today will help fuel your child's interest for higher learning tomorrow. Secure a copy now.

"You might think cities are the last place to find nature. But nature is actually right outside your door--you just need to know where to look. From the roofs of apartments to parking lots, cities are bursting with plants and animals. In this fascinating and interactive guide, kids will learn about how birds build their nests on bridges, where salamanders and toads hide, and how plants push through sidewalk cracks. Alongside these awe-inspiring facts,...