설명
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.
책 세부 정보
형식
페이퍼백
페이지
120 페이지
언어
영어
출판됨
1월 1, 1999
출판사
GEMS
ISBN-10
0924886323
ISBN-13
9780924886324