The Wonder of Science Paul Andersen 2/14/20 The Wonder of Science Paul Andersen 2/14/20 Melting Crayons Read More Paul Andersen 7/15/19 Paul Andersen 7/15/19 Heating and Cooling Read More Shared Paul Andersen 7/15/19 Shared Paul Andersen 7/15/19 Matter and Interactions Read More Paul Andersen 7/15/19 Paul Andersen 7/15/19 Melting Ice Cube Read More Paul Andersen 12/11/17 Paul Andersen 12/11/17 Reversible or Irreversible Read More Paul Andersen 12/11/17 Paul Andersen 12/11/17 Heating and Cooling Materials Read More
The Wonder of Science Paul Andersen 2/14/20 The Wonder of Science Paul Andersen 2/14/20 Melting Crayons Read More
