توضیحات
Students observe the passage of hundreds of thousands of years without leaving their desks! By creating desktop river models, students observe how rivers, canyons, deltas, and other geological formations change over time. The river models enable students to gain experience with concepts such as geological time, erosion, and pollution.
جزئیات کتاب
فرمت
جلد نرم
صفحات
120 صفحه
زبان
انگلیسی
منتشر شده
ژانویه 1, 1999
ناشر
GEMS
ISBN-10
0924886323
ISBN-13
9780924886324