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Science 6 Weekly Update – Chemical Reactions & Density

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This week in Science 6, students investigated chemical changes and even created their own chemical reaction using vinegar and baking soda.  We learned about open and closed systems and their affect on mass during a reaction.  We also learned about endothermic and exothermic reactions.  An endothermic reaction absorbs heat and feels cold to the touch.  An exothermic reaction gives off heat and will feel warm.  After observing chemical reactions, student began learning about density and the relationship between mass and volume.  We conducted a lab to investigate cubes that have the same volume but are made from different materials, such as pine, copper, acrylic, brass, and steel.  The students hypothesized that if the cubes are the same volume, then the density can still be different because the mass of each material is different.  Then they used their data results to support their hypotheses.

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