Objective: Factors that Affect the Rate of a Chemical Reaction
Big Idea Application:
During chemical processes matter can change forms.
The overarching essential questions being considered:
What happens during a chemical reaction?
The essential questions being considered:
How can you tell if a chemical reaction has occurred, when two chemicals are mixed?
Approach/ Strategy being applied:
5a: Students know reactant atoms and molecules interact to form products with different chemical properties.
5c: Students know chemical reactions usually liberate heat or absorb heat.
Anticipatory Set (Hook):
- What is happening to the cracker?
- What factors in your mouth contribute to these changes?
Review terminology- activation energy
Lab: Can you speed up or slow down a reaction?
Complete Analysis and Conclusion Questions
Contribution to student understanding:
This lesson asks the students to describe, explain, and predict the outcomes of the experiment. Using this type of questioning will increase their "scientific literacy" and foster their understanding of the "nature of science," which states that all scientific knowledge is based, at least partially, on and/ or derived from observation of the natural world.