For up to 32 students. Find out why clothes dry on the line and a can of cold soda pop is wet. Create dew and measure the dew points of air samples. Study the how and why of frost and learn how humidity affects dew points. Materials for 8 groups include: 16 thermometers; 8 aluminum cans; 16 sample containers with slotted caps; sponge, spoon, 8 plastic plates; instructions with journal pages, glossary and challenge questions
