7.SCI.6.E

Investigate and model how temperature, surface area, and agitation affect the rate of dissolution of solid solutes in aqueous solutions.

Grade 7 · Texas Essential Knowledge and Skills (TEKS) · TEKS 2022

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Vocabulary
temperaturesurface areaagitationrate of dissolutionsolid solutesaqueous solutionsinvestigatemodel
Skills
  • investigate (how temperature, surface area, and agitation affect the rate of dissolution of solid solutes in aqueous solutions) #dok2
  • model (the effects of temperature, surface area, and agitation on the rate of dissolution of solid solutes in aqueous solutions) #dok3
  • analyze (data from investigations about the factors affecting dissolution rate) #dok3
  • explain (the relationship between factors and the rate of dissolution) #dok2
Learning Targets
  • I can define dissolution and identify factors that may affect its rate. #dok1
  • I can describe how temperature, surface area, and agitation interact with solid solutes in aqueous solutions. #dok2
  • I can investigate how changes in temperature, surface area, and agitation affect how quickly a solid dissolves in water. #dok2
  • I can model the effect of different variables on the rate of dissolution using visual representations or physical demonstrations. #dok3
  • I can analyze and interpret data from dissolution experiments to draw conclusions about the influence of each factor. #dok3
  • I can explain how and why temperature, surface area, and agitation change the rate at which solids dissolve. #dok2
Big Ideas
  • The rate at which a solid dissolves in a solution is influenced by several measurable factors: temperature, surface area, and agitation.
  • Understanding how to investigate and model the dissolution process enables us to predict and control outcomes in real-world situations.
Essential Questions
  • How do temperature, surface area, and agitation each affect how quickly a solid dissolves in water?
  • Why does changing the temperature make solids dissolve faster or slower in a solution?
  • In what ways can increasing surface area speed up the dissolution process?
  • How can agitation be used to control the rate at which a solid dissolves in a liquid?
  • How can you use models to explain the relationships between these factors and the rate of dissolution?