A student has a piece of an unknown mineral. He records several of its properties. Which of these are properties can he use to help identify the mineral?

its crystal shape
its mass
the length of its longest side
whether it is attracted to a magnet
whether it is fluorescent

An engineering team designs a new rocket that is faster and lighter than any other model being produced. however, the materials end up being so expensive that no company can afford to buy them. which step of the engineering process should have addressed this problem? a. know the background. b. evaluate the results. c. identify a need. d. do the work.

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

Elements that do not have full outer electron shells will donate, share, or take electrons from other atoms. choose the items that have the correct binary ionic formula.