Hello! Today in science I learned how to make water bottle rockets, and an air rocket.
I already knew how to do a certain type of rocket we call the pop bottle rocket It’s technically pretty similar to the rest except we put a egg on the top of an upside down bottle and use the air compressor to put pressure in the bottle once there is to much pressure in the bottle it launches itself into the air the egg normally goes higher because it has more weight but when we put water in the bottle it makes it go higher. We use a fence post holder to hold the bottle before it launches a fence post holder in our version is two pieces of plywood cut about two inches long and one more piece of plywood about 4 inches long then we screw two screws into the edge of the 4 inch piece and under it we put both two inches pieces so there is about an inch of space from the ground to the bottom of the center piece of plywood. Then we drill a half inch hole in the center of the top piece of plywood then we put the lid of the pop bottle in to the half inch hole then we put the air compressor under it. Next we put the egg on top of the bottle after that we start the air compressor and away you go! We only had one egg that did not break doing this because it somehow landed on the trampoline that is about 300 feet away from the shed where we normally launch the rocket. After we found it we threw it in the fire it blew up! That was when I had friend over last summer when I had just finished my first year of homeschool when there was no Coronavirus.
The difference between the water bottle rocket, pop bottle rocket, and Air rocket is very interesting. The air rocket uses string, a straw, a balloon, and some tape. You first attach one end of the string to a tree branch or something similar that is higher than launching point. Then you put the straw in the string next you tape the balloon to the straw then you blow up the balloon but don’t tie it. After that you let go of the balloon then there you have it!
The water bottle rocket uses some pipe, and a big pop bottle and at one end you but an air valve that is on the typical tire. Then you use some tape a few snap ties to the tube without tying them then you use the top part of the snap ties as a holder for your bottle to be held with. then use a bike dump or something close too it to pump air then once there’s enough pressure the snap ties will let go and your rockt has been launched!
That’s it! Maybe I could post a video of us doing pop bottle rocket sometime comment if you think we should!
JakeL blog 