Two students make a model of a tree house they want to build. the scale is 1: 44. in the scale model, the tree house has 2 windows. how many windows should the real tree house have?

Five students had to answer the question how are elements arranged in a periodic tabledamon: i think the elements are arranged by increasing massflo: i think the elements are arranged according to their properties sienna: i think the elements are arranged by when their discovers kyle: i think the elements are arranged according to how common they areglenda: i don't agree with any of themwho is right

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?