Category Archives: Physical Science

HS-PS1-7: Stoichiometry

During my methods class tonight, a student asked how one could use inquiry-based instruction to teach something like stoichiometry. So, we ran through a little simulation of how I think about teaching stoichiometry using inquiry.  Inquiry is not necessarily limited … Continue reading

Posted in High School, Physical Science, Physical Science - Chemistry, Science Teaching | Tagged , , , , , , , , | 2 Comments

Cartesian Diver

Found this video on youtube showing a Cartesian Diver.  I do NOT recommend showing students this video.  Instead, make your own.  I have had success by using 1-liter pop/soda bottles filling them with water and using a mostly full of … Continue reading

Posted in Physical Science | Tagged , , , | 1 Comment

Theories do NOT become laws

Michael Doyle’s post about evolution and students’ acceptance of evolution brings up another misconception about how science works. Many (most) people believe science ideas progress through a hierarchy.  They believe ideas begin as hypotheses, then with some evidence they become … Continue reading

Posted in Life Science, Nature of Science, Physical Science | Tagged , , , , | 8 Comments

The power of food coloring.

This one demo serves to model several natural phenomena.  To explain the observations requires understanding several interconnected scientific ideas.  Particle motion, Kinetic Molecular Theory, Gas Laws, Air Pressure, Plate tectonics, Winds, fronts, air masses, and Density are all aspects of … Continue reading

Posted in Earth & Space Science, Physical Science, Physical Science - Chemistry | 9 Comments