Insulation is an important part of the building process; we insulate our homes, schools and businesses to conserve energy. Insulation helps to help us cool in the summer and warm in the winter. Students were asked to design an insulating box, one that would keep ice cubes from melting using their choice of insulting materials: ~styrofoam ~cotton batting ~6 sheets of newspaper ~bubble wrap After leaving the containers over night, the class compared their results.

Which element in the third period would you expect to have the larger atomic radius, sodium (na) or sulfur (s)? a. sodium, because it has a higher effective nuclear charge attracting electrons in fewer energy levels. b. sodium, because it has fewer protons attracting electrons in the same energy levels. c. sulfur, because it has more protons attracting electrons in more energy levels. d. sulfur, because it has a higher effective nuclear charge attracting electrons in the same energy levels.

Which statement can best be concluded from the ideal gas law?

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature