Research Paper: Dr Daniel Hale Williams

Our Scientist of the Day is Dr Daniel Hale Williams, the first surgeon to perform successful heart surgery. Read the story that resulted in the need for the surgery.

Case Study: AIDS/HIV

Identification and description of microorganism that causes the disease (bacteria, virus, fungi)Clinical presentation (signs & symptoms)Epidemiology (is there a population group that is more at risk, explain)Mode of transmissionTreatmentPrevention (is there a vaccine available, which behavioral of life modifications can be done to prevent this disease, etc.)Complications if any

Project 8.2: Energy balance and solar constant

Understandings:• Conduction, convection, and thermal radiation• Black-body radiation• Albedo and emissivity• The solar constant• The greenhouse effect• Energy balance in the Earth surface/atmospheresystemApplications and skills:• Sketching and interpreting graphs showing the variation of intensity with wavelength for bodiesemitting thermal radiation at different temperatures• Solving problems involving the Stefan–Boltzmann law and Wien’s displacement law• Describing the …

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Theory of knowledge on global warming

The debate about global warming illustrates the difficulties that arise when scientists cannot always agree on the interpretation of the data, especially as the solution would involve large-scale action through international government cooperation.When scientists disagree, how do we decide between competing theories?