In this trees worksheet, students put different kinds of trees into a chart and compare and contrast them. Students then answer percentage problems about the trees and short answer questions. Students complete 7 questions in all.

In this Pennsylvania geology worksheet, students click on the links in the questions about Pennsylvania geology to find the answers to the questions and then come back and answer the questions. Students answer 12 questions total.

In this birds nests worksheet, students click on links to access sites and answer questions related to bird nests. 

In this sun worksheet, students click on the links to read about the sun and then answer short answer questions about it. Students complete 10 questions.