Two kinds of observation and its meaning?

What endocrine gland that helps regulate blood glucose? Convert 9.11 kilometers to miles? What structural characteristics does the cork posses to perform these function? Do atoms rearrange when particles collide with enough energy? How would thirst be detected in the brain? What is the meaning of Neptune's name? What is called when a group of students is determining the number of plastic bags placed in a landfill during a single day? What would not be considered a chemical reaction? Which holds more water a one cup measuring cup or a glass that holds one pint? Why is the world divided into 24 time zones? Is 5 yrds 1 foot bigger than 192 inches? What happens to the volume of a rectangular prism if height is doubled and length and width stay the same? What is the 2nd coldest ocean? Does fossils form from soft parts or hard parts? What would scientist have to change in order to live in mercury? Which removes carbon dioxide from the atmosphere acting like carbon sink? What are is the 3 subatomic particles and their masses? What is having only one or a few parts? Which property of water allows it to dissolve important biological ions? What is an example of an alkali metal that does NOT exist independently in nature or in the laboratory?

Two kinds of observation and its meaning?