What are spontaneous demonstrations Why are they held?

Does graphite leave a streak? How many degrees warmer is 3 degrees celsius or 15 degrees celsius? When are goggles absolutely necessary in the laboratory? Chemistry of hard water and how we deal with it? How do you know if your going uphill or downhill by looking at a contour map? What agency disseminates warnings for inland tropical storm or hurricane force winds? What does position have to do with Global Positioning System? Which result is most likely? How many red blood cells does bone manufacture every day? How many valence silicon have? Is Petrified wood was actually rock in a different form before it petrified.? Which of the noble gases is most often used in neon signs? What is cardiac physiology? If you have 4.00 quarts of milk. How many liters is this (1 quart equals about 0.946 L.)? What is the boiling point of water at the south pole? What is the copy of the gene that moves to the cytoplasm called? How long will a bear live after ethylene glycol poisoning? How many unpaired electrons are in strontium? What is the control in an enzyme lab? What effect would occur if the intermediate switch were replaced by a double-pole switch?

What are spontaneous demonstrations Why are they held?