Materials for each pair hot tap water (near boiling) cold water (from refrigerator or ice water) four unbreakable glass or transparent plastic cups food coloring (one color) plastic spoon sheet of paper Procedure Before you begin, write down on a separate sheet of paper which temperature of water you think will sink faster: cold or hot.
(a separate sheet of paper; will sink faster cold; ) (you; begin; ) (you; think; )
a separate sheet of paper you you
will sink faster cold begin think