16 subtract water from 1000 to get rock number Posted on June 4, 2014 | 3264 × 2448 | Posted in Return to T’s First School and District Science Fair ROCKED! ← Previous Next → T even wrote down all the measurements and did the math for the tables and graphs for his science fair project! Share this:TweetEmailLike this:Like Loading... Post a comment or leave a trackback: Trackback URL.