Learners examine phase diagrams that show the phases of solid, liquid, and gas as well as the triple point and critical point.
By Debbie McClinton Dr. Miriam Douglass Dr. Martin McClinton
Students identify the parts of a triple beam balance and practice measuring the mass of objects.
By Jill Crowder
Users study a chart containing numbers 1 to 99 and look for trivial palindromes as well as double and triple iteration palindromes. The reverse and add technique is demonstrated.