Water learned in science class that different substances release heat at different rates. he decides to test this. at home, walter turns the oven to 200°f. he places three casserole dishes in it: one is made of metal, one is made of glass, and one is made of ceramic. he leaves them in the oven for an hour. he then removes them from the oven, places a single ice cube on each one, and times how long it takes the ice cube to melt. in this experiment, what is the test variable?

What is the mass of sodium in 3 moles of sodium chloride

An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons

Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.