What forces the inner core of Earth to remain solid? A.) Lack of water
B.) Low temperature
C.) Low density
D.) High pressure

An observation that requires measurement is called quantitative observable or qualitative

An object becomes electrically charged when: electrons are created in it electrons from it are destroyed electrons are transferred to it protons from it are destroyed protons are created in it

If 15 drops of ethanol from a medical dropper weight 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? the density of ethanol is 0.80g/ml