Research for rube goldberg project momentum and speedyou : )

An observation that requires measurement is called quantitative observable or qualitative

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this

How many moles of sulfur dioxide are produced when 4.38 moles of oxygen completely react with iron (iv) sulfide