PRACTICE

1. In the Search with: this boolean expression, type keywords using url searching and full Boolean logic (and, or, and not) to find tips on safety during a tornado.

2. Choose the single most important keyword for your search and type it again in the sorted by search box.

3. Click the Search button.

4. Scroll down and review the first 10 results. Click on any links of interest.

5. Scroll down toward the bottom of the page. Click on 2 (below the last result) for the next set of 10 results.