What is an observesation?

Which is the heaviest kiloliter centiliter liter milliliter? What is houmous made from? What two effect of heat that do not help us in our daily lives? What is a rectus abdominus? What is a teetle? What effect did science and technology have on world war 1? Why did be fraklin invent the rocking char? How much money did George W. Carver make? Would it be more accurate to measure the amount of water that a container can hold by using one measurement with a large graduated cylinder or two measurements with a smaller graduated cylinder? Height of a 250 mL beaker in centimeters? What is the competent person? What is defined research method? What option is an example of Expository writing? List 5 things that can be use as stimulus? How much is 1cm2 in dm2? Why in 1920 did other scientists thought wegener a hypothesis was wrong? Francis Bacon created a new way of scientific thinking called inductive reasoning. How was this different from the deductive reasoning of earlier eras? What do you think is good about fossil fuels? What usually happens in march? What is the difference between an imperative sentence and a command?