Ms. Dobler’s 6th graders completed an introduction to physical and chemical changes this week in science class. Students discussed their observations with three mini experiments to determine if each was a physical change or a chemical change. One experiment involved melting a chocolate chip between their fingers and then using their senses to see it is still chocolate. Also students worked at dissolving salt in water and using their senses plus a molecule model to see it is just mixed together. Finally, students were also mixing baking soda and vinegar and using their observations plus a molecule model to see that new molecules were created. One of the new molecules created is the carbon dioxide that fills the balloon. These kitchen chemists were excited to see all the ways they could interact with the world in their home to experiment and understand physical and chemical changes.
Crazy Kitchen Chemists
