What is a quadvant?

How does upthrust affect an air-filled balloon? What is the best central vacuum system? Is an inch 12cm? Is this true......Work output is the work done by a machine? Does the lamb shift of hydrogen electrons effect their energy? What is the average size of a gas station? Why do vegetables go soft when you cook them? How much energy is needed to melt 25.4 grams of iodine? How are fossils used in determining the age of the Earth? What is the function of peripheral milling? What is a general term refers to the measurable lessening of the effectiveness of a pesticide? Which statement best describe scientists who contributed to the current body of scientific knowledge? What is the name Dolly as to become associated with new branch of science? What is an experimental science? How many centremetres in 390 millimetres? How waste should be stored prior to collection and how to despose of waste wirthout risk to others? Why is fire important? How many ml equals 1 mg? What is the difference between a herbivore a carnivore and a scavenger? Factors that are varied during an experimental procedure are called?