説明
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.
本の詳細
形式
ペーパーバック
ページ数
120ページ
言語
英語
公開されました
1月 1, 1999
出版社
GEMS
ISBN-10
0924886323
ISBN-13
9780924886324