Making stuff

Making stuff stronger: How can kepler stop a bullet? Kepler is made up of small strong bonds of atoms that absorb the shock of a bullet. This is an important question because some things are made stronger by using kepler.
Making stuff smaller: How does transistors make things smaller? Smaller transistors make smaller things. It's important because it explains how some things get smaller.
Making stuff cleaner: Why are plants so important to the environment? Plants breathe out oxygen which we need to breathe. This is important because we need plants to survive.
Making stuff smarter: How did shark skin inspire doctors with an idea?  Doctors are beginning to use sharklet a substance that eliminates anti-biotic resistant bacteria. It's important because those bacteria don't get killed when the patients use anti-biotics.