Crawling means that the search engine bot crawl the webpages whereas Indexing means store the information of web pages which is already crawled by search engine.

Crawling means the search engine robot crawl or fetch the web pages while Indexing means search engine robot crawl the web pages, saved the information and it appear in the search engine.

Crawling means the search engine robot crawl or fetch the web pages while Indexing means search engine robot crawl the web pages, saved the information and it appear in the search engine.

Crawling means the search engine spider just Visit your website...
Indexing Means the crawled webpages are stored in the search engine database...

CRAWLING is the process of finding the relevant search results,
Indexing is the process of ranking the results based on popularity.