The Periodic Table has changed a great deal over time. It had more than 100 different forms before the present one. It will continue to change as new elements are discovered or created.
Write a report about the elements that make up water. To do so, you will research hydrogen and oxygen. Here are some questions to guide your research:
Where does the name hydrogen come from?
Where is hydrogen found?
Who discovered oxygen and when?
What clues can you use to infer when the structure of water was discovered?
Are you ready? Begin by visiting the Web sites listed in Step 2. Look for answers to the questions above, and write down what you learned in the note-taking boxes.
You may use search engines to research other Web sites. Or research hydrogen and oxygen at the library. When you have finished, follow Steps 3 and 4 to write your report.
Step 2. Research
Research answers for 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 copy information from a Web page and paste it into a new file.
