What is an observesation?

What would you find under a rock? What are 3 things that make a country? What is the importance of science in your day to day activity? Who made ixl? Values of research? Different scientific method? Does science offer conclusive proof for a theory? What temperature does a brass cartridge melt? What can a loose toilet cause? What is the difference between external ventilation and internal ventilation? Liquid that has a density of 0.80 and soluble in cyclohexane what liquid may be this? Keep an ice cube frozen for 5 hours? How much would 150 kg be in pounds? What are the six steps in cleaning and sanitizing? How do you write 108200000 in scientific notation? What is sledge? How many feet is 827 steps? What substance generates h when dissolved in water? What is an hypothesis that has been tested many times and is supported by evidence over a long period of time? What is the idea that knowledge is acquired only through direct observation?