The production principle of water rockets is a toy designed using mass ratio and air pressure. It is also one of the more famous cases in physics teaching. DIY water rockets by hand can cultivate students' interest in physics learning, and the physics contained in them Principles are an important basis for understanding mechanics in physics.
Materials needed to make a water rocket:Colored 5-liter carbonated drink bottles, this is the folding part for making a water rocket: polyethylene on the top, the spray port needs to be made separately or purchased for about 2cm wide plastic tape 4/5cm wide double sided tape oil based felt tip pen large stapler large cutter scissors
pliers
wood chip roller, lumber, ruler
Warm reminder:
If children DIY water rockets, they need to be accompanied by their parents. Be careful not to get hurt when using knives, scissors, pliers, etc.
First, the bottom of the bottle is 5 cm above the shape line Cut it off (see white line) and use scissors to remove 1 cm long.
Then trim the bottom
Trim the bottom along the white line
Display picture after bottom trimming
About 2 cm from the spout Cut off the mouth of the bottle
Trim out 8 gaps with a length of 1 cm to 1.5 cm, which should be divided into equal parts
Fold inward along the cut area
This is to install the water rocket nozzle into a new on the drink bottle
Two beverage bottles docked
Wrap the connection parts with plastic tape
After wrapping with vinyl tape, please check whether the two beverage bottles are installed straight
Use the same method Vinyl tape to mount rocket head
At this point, the water rockets arrow body comes out. Next lets start making the tail fin of the water rocket
Use scissors to cut the drink bottle middle part of
Use a roller or wooden block to flatten it
Use a template to make squares of the same size
Put a dot 5 cm on each side
Connect two points
Use a knife to cut along the drawn line
This is the picture after cutting, make sure the size is the same
Use 1 cm double-sided tape to attach
Note, be sure to cut evenly
Attach the upper part
Tear off the inner side of the double-sided tape
Align and attach the two templates together
Press firmly
Use pliers to make creases
Staple it to prevent cracking
Adhere with vinyl tape
Vinyl tape attached
Fold the bottom
Use scissors to trim evenly
Adhere the bottom with double-sided tape and cut off the excess
Use the same method to make 4 wings.
Skirt made. Cut along 5cm from the bottom of the bottle (see your white line).
Scissors trimming and shaping
Find 2cm from the nozzle and mark it
Draw a line of symmetry
Use double-sided tape to connect along the dotted line
Symmetrical four-sided connection
Reinforce with staplers on both sides
Vinyl tape sticks firmly
Connect to the bottom of the water rocket
How about, the water rocket has been completed here. The production of the water rocket launch pad.
