Assemble the straight-chain form of C6H14. Note the many conformations as the chain twists. Remove two -H\'s, one from either end, and join the two end C\'s with a single bond to form the cyclic compound cyclohexane. With care, you might be able to convert between the "chair" and "boat" forms without breaking any bonds! Remove a -CH2- group (methylene) from the ring to form cyclopentane. Repeat to form cyclobutane and cyclopropane. Explain the term "ring-strain," and rank the molecules you formed according to increasing of ring strain in each structure. In your explanation, address bond angle and hybridization. Upload a picture of your cyclopropane model (No flexible bonds here - that takes all the fun out of it).