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Video How to Make a Rocket from Paper & a Straw | Science Projects
09:53   |   849K+ views   |   today at 11:16


  • Hi, guys. Just think about this; when you hear, '3, 2, 1, take off', what
  • comes to your mind? Rockets, right? Really cool rocket ships that fly into
  • outer space, maybe going to the moon, or rovers going on Mars. Some of you
  • are thinking, "Oh, my gosh. What's this guy doing? There's no way we're
  • going to be looking to make a rocket at home." The reality is you can.
  • Believe it or not, when I tell you how we're about to make a rocket, you
  • can make hundreds of them. All I need is paper, a scissor, Scotch tape, and
  • a straw. I'm going to make a really awesome rocket. I know you're saying,
  • "Wait a minute. It's not going to be able to fly." No, it will fly, and it
  • will fly high into the sky. Ready? Check this out.
  • Step 1: Regular paper, computer paper. The fun part of this is . . . and
  • we'll get into this a little later, you could change your rocket to try to
  • get it to travel further. I'm going to start with the basic rocket. I'm
  • going to make my rocket 5 inches high. To make it easy, you want to create
  • a square. You all know that squares have 4 equal sides, so you want to make
  • it 5" x 5" x 5" x 5". This is my 5-inch square.
  • I'm going to make the template of my rocket. I'm going to need to make a
  • circle, which will eventually be the pointy cone part. Think about it; a
  • cup, put it down, trace your circle, and that's done. I'm going to make the
  • wings to my rocket. What I'm going to do is create a triangle that's going
  • to be 2" x 1". Just connect the dots, my wings are done. How simple is
  • that? I'm going to make 2" x 1", and just connect the 2 corners. Here we
  • go. I'm going to do it twice so that my rocket will have a pair of wings.
  • The wings are going to be needed to help it cut through the air. You want
  • your rocket to be really aerodynamic. You want it to be able to cut through
  • the air really fast. The more aerodynamic it is, the further it's going to
  • go. This is all I need to make my rocket. I'm telling you, this rocket will
  • fly 30 feet, maybe.
  • Next step; cut out the square. If you're not good at cutting, take your
  • time, but you really want your rocket to have a nice body. I cut out my
  • square. This, I would say, is probably the hardest part. I always like
  • having my tape precut because I'm going to have to fold now, and if you
  • fold it and you're holding it, how are you going to cut out your tape? If
  • you're an octopus with 8 hands, it would be okay, but you're not an octopus
  • with eight hands. What I'm going to do is precut this.
  • My pencil: Take my pencil, I'm going to take my paper, and I'm going to
  • wrap the paper around the pencil so tightly that the pencil is going to be
  • stuck inside. Take, and roll; roll it all around. You have this; pencil
  • doesn't want to fall out, but there's hardly any friction. Twist it, twist
  • it, twist it. 2 smooth surfaces; not a lot of friction, it comes out. Make
  • your body even. Take your piece of tape. Tape 1, tape 2, and tape 3. I now
  • made the body to my rocket. It looks like a straw. Spitball. No, not a
  • spitball; don't do it. Body to my rocket.
  • I'm going to make the cone. I'm going to make a little, little dot in the
  • center of my circle, and I'm just going to make a little triangle, like a
  • piece of the pie, maybe 1/8 the size of the circle. I'm going to cut out
  • the circle. Actually, I lied; I said that making the cylinder, or the body
  • of the rocket, was probably the hardest part. Actually, I think this is
  • going to be the hardest part. If you watch, you'll be able to do it.
  • I'm going to take the circle and cut out the piece of the pie. I do not
  • need the piece of the pie; I need that. Watch what I'm about to do. I'm
  • going to take it, and I'm going to make a cone. I'm going to put this down.
  • Right now, it looks like a teepee or a really cool hat. I'm going to take
  • this and I'm just going to twirl it and keep twirling it around my fingers;
  • keep twirling it, and you keep doing it until eventually, it just gets so
  • tight around your finger that it become a really cool, tight cone. I'm
  • going to take a piece of tape and tape it down. Now it looks like an ice
  • cream cone. What would you do if mommy gave you ice cream on a cone like
  • that? You wouldn't want it.
  • I'm going to take this and I'm going to put it on top, but it just looks a
  • little too flimsy. I made it a little too big. If that happens, just cut a
  • small piece like this; put it on top. Think about how pointy this is. This
  • will cut through the air, the way a knife can cut through butter. I'm going
  • to tape this down. Take it and tape. My rocket is almost done. Take both
  • sides, and then what I would do is actually test this. You want to make
  • sure that your cone is airtight, so just blow into it. No air. Your
  • rocket's almost done.
  • I'm going to add my wings. The cool part about this experiment is later,
  • when you make it and you fly it, if you're not happy with how far your
  • rocket went, or if you're not happy with how high your rocket went, the
  • beauty of science is you can change things. You could change how big your
  • rocket is. You could change the wing shape. Maybe make a square wing. You
  • could change the wing size. You could change the wing number. There are so
  • many variables that you can change to try to get the rocket to go further,
  • you'll be here for hours making rockets. I'm going to add my wings. You
  • still have no clue as to how we're going to get this rocket to fly, but
  • watch. Add my wing; wing 1 and wing Number 2. Now my rocket is ready for
  • lift off. Watch.
  • Straw: This would be my rocket holder. Let's do a countdown and watch it
  • take off. Count with me. Ready? 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, take off.
  • Did you really expect it to take off? It can't take off. What does it need?
  • It needs a force. Everything on earth that moves needs a force. Some of you
  • are saying, "Man, we don't have an engine." You do; your lungs. Check this
  • out. Look at my chest. Breathe the air out, your lungs get smaller. The
  • more air you put, the more power you give your rocket ship. I'm going to
  • blow all the air out of my mouth into this straw and it's going to hit the
  • rocket. The air cannot escape. It's going to create so much pressure, the
  • air's going to have to find a way out, and your rocket is going to fly.
  • These are really pointy, extremely pointy. You don't want to do this at
  • home. You have your little brother and sister running around, and you could
  • poke them. You've got to make sure that no one's around, or you can make
  • sure you do this outside, but you can test it. Watch. Put it in. Vary the
  • force; small force. Let's see how far it goes. Maybe I'll just shoot it up
  • first so you guys can see a small force. Ready? 'Boink'. If you did a
  • harder force, it could actually move across the room. Ready? If you go
  • outside, you could challenge yourself. Every time you do it, put a marker
  • on the floor. You can say, "Wow," and you can measure it. Measure it in
  • your feet size. 1 feet, 2 feet; It went ten of my shoe sizes. Then you say
  • to yourself, "Wow. Man, it only went 15 shoe sizes. I really wanted it to
  • go 30." Go back home, change one thing on your rocket. Maybe you can make
  • it smaller. Maybe if it's smaller, it weighs less. I'm not going to tell
  • you what makes the rocket go further; that's the science. You ask a
  • question, make your prediction, you test it, and then you get your results
  • and see what happens. That's our awesome paper rocket.

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