What is a DA20?

Plants changing carbon dioxide and water into sugar and oxygen a physical or chemical change? Is 32 celsius considered a fever? Where does the rainbow gets its colors? How many lone pairs of electrons does PCl3 have? What is cyanoacrylate the generic name for? How many atoms are in 1 mole of Fe? How can the window be improved to stop the sound from annoying the neighbours? How shadows are formed? What are baking soda's physical and chemical properties? What goes through Cities and fields but never moves? When providing proof of life what information should you include (Select all that apply)? How did Darwin attempt to determine how modifications of a species are accomplished? What good do hurricanes and snow storms do? Write an example of the word research being used inappropriately? What is successful outcome for the scientific method? List three examples of scientific research where the public does not have all available information? How far in miles is 1 AU1 Astronomical Unit? Difference between large and small snowflakes? Calculate the mass percent of each element in CaCO3? What are the example of products or solution found at home and in stores and their characteristics and describe?