Choosing and Preparing Your Rocket Bottle

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What Type of Bottle is Best?Unless you have bottles that came with your rocket from AntiGravity, you'll need to select and prepare a bottle from your recycling bin. The very best bottle to use is a 2-liter plastic pop bottle that previously held fizzy pop. This type of bottle is very good at holding the pressure that your rocket will ... Read More

The Difference Between AntiGravity Rockets and the Homemade Rocket

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Why Do We Show You How To Make Your Own Rocket?If you're in a time pinch and need a rocket today, it's nice to be able to get something impressive flying that's easy to make, without having to wait for it to be delivered. We're happy if the homemade rocket lessons on the website can help you. Or if you ... Read More

Homemade Rocket Troubleshooting & Maintenance

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Homemade Rocket Troubleshooting & MaintenanceRocket loses a fin on impact with the ground: Using your low-temperature hot-melt glue gun, just glue it on again and you're back in business! Rocket releases too early and doesn't fly high enough: Push the cork in much farther! The farther you push the cork in, the higher your rocket will fly! But don't push ... Read More

Building a Homemade Water Rocket Launcher

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Supplies You'll Needa plastic cork (to fit into a 2-liter bottle. This is most of your launcher, right here!) 25 feet of 1/4-inch diameter polyethylene or vinyl plastic tubing (available at your local building supplies store!) a roll of ¾ inch wide masking tape (for making the bicycle pump adapter!) Tools You'll Need For Your Water Rocket Launchera philips screwdriver ... Read More

Water Rocket Launcher: Launching Your Homemade Water Rocket

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Now that you've completed lesson 1 (building your water rocket) and lesson 2 (building your launcher) it's time to send your rocket into the sky! This is definitely the most exciting part of the project! Supplies You'll Need the water rocket you built (from lesson 1!) the launcher you built (from lesson 2!) one 2L pop bottle and cap (for ... Read More

Water Rocket Experiments You Can Do With Your Homemade Water Rocket

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Trying Different Amounts of WaterWhat difference does the amount of water you put in the rocket make? You will need a way of measuring the effect. One way to do this is to use your watch to time the number of seconds that the rocket is in the air. First, try launching your rocket without any water in it. Try ... Read More

Why do AntiGravity Water Rockets Fly Higher?

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Whether you're making your own  water rocket using our DIY homemade rockets, or have purchased one of our professional home-use rockets, you'll find that our designs offer you the ability to really fly high. Why? Why do these designs fly so incredibly high? The best way to understand why our water rocket designs work so well, is to take a ... Read More

How Does a Water Rocket Work? Get Ready To Learn!

Aerial photo taken with camera atop AntiGravity's Payload Rocket
"Where does the rocket’s super power come from?"When you pump your bicycle air pump fifty times, the work that you do is being stored inside the pop bottle as compressed air. Air is very springy and when it gets a chance, it bounces back to its original volume. The only way it can do that is to come rushing out ... Read More

Water Rocket Safety

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How Can You Use Your Water Rocket Safely?Although AntiGravity water rockets are made to be as safe as possible to use, there are some very important rules you will need to follow for the safety of yourself and others. Most of these rules are just common sense, but nonetheless it is important to keep these in mind as you use ... Read More