Older monthly plans

Topics in Sept 2023

Sept 16  Chemistry with limestone rocks.  Density of limestone and chert.  Reaction with vinegar.  Eggshells and vinegar.  Density of carbon dioxide.  Read about deadly carbon dioxide at lakes, the limnic eruption at Lake Nyos.  Experiment:  graph the declining mass when vinegar reacts with sodium bicarbonate.

Sept 23  Resistors, an electrical part.  Measure with digital multimeter.  Heat resistors with 12 volts.  Measure wire resistance.  The power formula.  Take home a resistor and a burned resistor.  Today, students will vote on the October topics.

Sept 30  An outdoor day for STEM Club while Badgestravaganza has the building (we have bathroom access).  Hand tools and some electric tools.  Safety above all else.  Avoid splinters.  Hacksaw and carpenter's hand saw.  C clamps to immobilize what you are cutting.  Cut round and square dowels and balsa wood to take home.  Sandpaper.  Laminate cereal-box cardboard into a tube to see how strong it gets.  Drill a hole in a 2x4 and glue in a round dowel.  Watch a circular saw with abrasive blade cut aluminum and steel.  Bend rebar wire.  Drill pilot hole and drive a screw.