#WordSearch Keep your students occupied with this thermal, heat energy word search puzzle while helping them improve their vocabulary. Your students can uncover the secret message by using the unused letters to fill in the blanks. They have to start from the bold, underlined letter and move from left to right through each row, from top to bottom. The words are hidden in various directions - horizontally across or backward, vertically up or down, diagonally up, down or backward. The words may a