Plants provide people with food, clothing, medicines, and building materials. Plants even provide oxygen for people to breathe. Scientists have discovered another use for plants. Some plants can help clean up toxic chemicals in soil.
Write a report about cleaning up waste. Before you begin, you will need to research ways of cleaning polluted soil, water, and air. Here are some questions to guide your research:
Where does toxic waste come from?
What are some methods for cleaning up toxic waste?
How can plants help clean up toxic waste?
What are some advantages and disadvantages of each method of cleaning up waste?
Are you ready? Begin by visiting the Web sites in Step 2. Look for answers to the questions above, and write down what you learn in the note-taking boxes.
With teacher supervision, you may use search engines to research other Web sites. You also can research cleaning up waste at the library. When you are ready, follow Steps 3 and 4 to write your report.
Step 2. Research
Research answers to the questions you were asked in Step 1. Visit these Web sites. Take notes about them on this page, too!
Toolbox Tip: Click here to learn how to use search engines.