Decoration. Once your rocket is built, decorate it! Add glitter or a scary face, or keep it NASA-appropriate with a gleaming white paint job. The only necessary marking is a fill line for your water.

You may wonder what to do with an old plastic water bottle. Sure, you could just drop it in the recycle bin -- but it could also be “upcycled” into a rocket like Ben Cusick’s model ...

This easy-to-build, kid-friendly water rocket turns any afternoon into a blast. By William Gurstelle Published: Jun 17, 2012 10:30 PM EDT. Media Platforms Design Team.

This rocket is made out discarded soda bottles and fueled with pressurized water. ... Build a Water-Powered Bottle Rocket. By. Jason Fitzpatrick. Published November 15, 2009.

OK, here is one more water bottle rocket. This is an older all-in-one pump and launcher. Just one more note: If you like, you can also make more complicated water bottle rockets.

Build the Best Alka-Rocket Ever—with Science. Move over Mentos and Diet Coke. With an effervescent tablet, a film canister and some water, you’ve got a real-life rocket.

How to Make a (More) Environmentally Friendly Rocket Fuel Every NASA launch leaves a huge cloud of exhaust and nasty chemicals in its wake, but NASA has long been trying to do better.

Build an Alka-Rocket (here’s a great primer). Send it skyward with fuel made only of effervescent tablets and water. And capture it all in a video, which you share over social media with the # ...

Sugar rockets are exceedingly more sophisticated than the other models on our list. When constructed properly, a sugar rocket has the ability to travel up to 2,000 feet on a single charge.