Students study the process of water purification and explain why it was important to treat it.  For this water purification lesson students purify drinking water and explain the factors that affect water quality. 

In this plant reproduction worksheet, students complete a crossword puzzle with 36 questions. They identify the different plant reproductive features.

High schoolers examine energy issues. In this environmental stewardship lesson plan, students discuss nuclear power options. High schoolers also discuss energy consumption and create energy reduction guides for students their own age....

In this Algebra II learning exercise, 11th graders add, subtract, multiply, and divide algebraic fractions and solve rational equations. The two page learning exercise contains eight problems. Answers are not provided.

Students explain how conservation of energy applies to roller coasters. In this physics lesson, students construct their own coasters according to a specified criteria. They make modifications to their design when necessary. 

Students discuss and research litter and write an anti litter poem. In this litter lesson plan, students also discuss what they can do to stop litter.

In this logic worksheet, students solve a word problem using logic about taking pictures. Students complete 1 problem on this worksheet.

In this logic worksheet, students solve a word problem using logic about people who are dating each other. Students complete 1 problem.

In this logic worksheet, students solve a word problem using logic about friends also being siblings. Students complete 1 problem on this worksheet.

In this logic worksheet, students solve a word problem using logic about the color tie that each man is wearing. Students complete 1 problem.

In this logic learning exercise, learners solve a word problem using logic about a family crossing a river. Students complete 1 problem total.

In this logic activity, students solve a word problem using logic about having money and spending 1/5 of it. Students complete 1 problem.

In this perimeter and area worksheet, students find the perimeter and area of shapes with right angles. Students complete 9 problems total.

In this logic worksheet, students solve a word problem using logic about people receiving different gifts. Students complete 1 problem.

In this logic worksheet, students solve a word problem using logic about different people having different snacks. Students complete 1 problem.

In this logic worksheet, learners solve a word problem using logic about people weighing a certain amount getting to shore. Students complete 1 problem.

For this logic worksheet, students solve a word problem using logic about matching spouses up to be married couples. Students complete 1 problem.

For this logic worksheet, students solve a word problem using logic about removing the most amount of money from a box. Students complete 1 problem.

For this logic worksheet, students solve a word problem using logic about lily pads covering a lake. Students complete 1 problem total.

In this logic worksheet, students solve a word problem using logic about a knight traveling to visit a princess. Students complete 1 problem.

In this logic instructional activity, learners solve a word problem using logic about women and their daughters eating at a restaurant. Students complete 1 problem.

In this logic activity, students solve a word problem using logic about sons and their ages by reading the clues. Students complete 1 problem.

In this logic worksheet, students solve a word problem using logic about a snail reaching the top of a well. Students complete 1 problem.  

In this logic worksheet, students solve a word problem using logic about rabbits being shot. Students complete 1 problem on this worksheet.