1.   Bubbles should come to the surface and sponge should increase its volume by about one-third.

2.   By the fourth day, enough bubbles should be coming to the surface to form a kind of foam.

3.   Kids push Elmo in his ice-cream truck and bubbles come out while music plays.

4.   The bubble would come down in the spring.

5.   Where the Arizona was, bubbles were still coming up.

6.   When the tool is perfectly level, or true, the bubble will come to rest between the two lines.