November 18, RocketLab16.notebook. Read through the sample directions for assembling a straw rocket.

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1 IN 1. Gather materials: clay, 3 X 5 index cards or card stock, Pitsco mini rocket launcher, 1 precision straw, tape, scissors, measuring tape, protractor, pencil, lab sheet, 2. Roll clay into 0.5 grams, 1 grams, 1.5 grams, 2 grams, 2.5 grams, and 3 grams balls. 3. Using the fin template, draw and cut out four fins. 4. Cut a piece of tape the length of the edge of the fin that is to be connected to the rocket body. Place the tape on the edge of one of the fins. 5. Attach the fin to the end of the straw body. 6. Repeat steps 4 5. Placing the second fin 180 degrees from the first fin on the opposite side of the straw. 7. Repeat steps 4 6 for the other two fins. The fins should form a cross at the bottom of the straw. 8. Shape the clay balls into a cone shape. 9. Press the 0.5 g clay cone to the top of the straw (opposite end from the fins). Make sure to center it and seal the top of straw completely. 10. Place the straw rocket over the launch tube of the launcher. 11. Adjust the angle to 40 degrees. 12. Pull the plunger knob to line labeled "5" and release the plunger. 13. Measure and record the distance traveled by the straw rocket in centimeters. 14. Be sure the nose cone is cone shaped. Repeat steps three more times. 15. Repeat steps 9 14 for each of the other clay ball sizes, 1 gram, 1.5 grams, 2 grams, 2.5 grams and 3 grams. 16. Calculate and record the average distance traveled by each nose cone size. In this experiment the mass of the nose cone was changed to see how the distance traveled by a straw rocket would be affected. Masses of 0.5 grams, 1 gram, 1.5 grams, 2 grams, 2.5 grams and 3 grams were tested. 1

2 IN 1. Gather materials: 1 straw, 3 X 5 index card or card stock, clay, tape, Pitsco mini rocket launcher, scissors, fin template, measuring tape, balance, lab sheet, and pencil 2. Using the fin template, draw and cut out four fins on the card stock or index card. 3. Cut a piece of tape the length of a fin. Place the tape along the edge of the fin. 4. Attach the fin to the bottom of the straw. 5. Repeat steps 3 4 with the other three fins. Be sure to place the fins at perpendicular angles so that they form a cross. 6. Measure out two grams of clay and knead it into a ball. 7. Shape the nose cone into a cone shape. 8. Press the nose cone to the top of the straw. Be sure to center it and to completely seal the top of the straw with the clay. 9. Slip the rocket over the launch tube. 10. Adjust the launch angle to thirty degrees. 11. Pull the plunger knob back to the line labeled "2" and release the plunger. 12. Measure the distance (range) the rocket traveled in centimeters. Record the distance. 13. Be sure the nose cone is shaped back into the cone shape. 14. Repeat steps 9 13 two more times. Recording the distance each time. 15. Repeat steps 9 14 for plunger lines labeled "3", "4", and "5". 16. Calculate and record the average distance traveled for each plunger distance. In this experiment the launch pressure used to launch a straw rocket was changed and the distance traveled by the straw rocket (range) was measured. A Pitsco mini launcher was used. It is marked with graduated lines that change the pushing/ launching force. The plunger knob on the launcher is pulled back to the graduated lines, then released to launch the 2

3 IN 1. Gather materials: 8 straws, index cards or card stock, tape, Pitsco mini rocket launcher, clay, scissors, balance, tape measure, lab sheet, pencil 2. Draw, cut out, eight different shapes of fins so that each shape has the same height on the mount side. 3. Once the templates are created, draw and cut out four of each of the fin shapes. 4. Cut a piece of tape the length of the edge of the half circle fin that is to be connected to the rocket body. Place the tape on the edge of the fin. 5. Attach the fin to the end of the straw. 6. Repeat steps 4 5 with the other three fins so that the fins are perpendicular with each other and form a cross at the bottom of the straw. 7. Repeat steps 4 6 for the other shaped fins. Creating eight rockets. 8. Mass out two grams of clay. Knead the clay to soften it and form a triangular nose cone. 9. Press the nose cone onto the straw at the opposite end as the fins. Be sure to center it and seal the top of the straw completely. 10. Repeat steps 8 9 for the other seven rockets. 11. Put the rocket with the half circle fins on the launch tube of the rocket launcher. Adjust the launch angle to 45 degrees 12. Pull the plunger on the launcher to the line labeled "5" and release the plunger. 13. Measure and record the distance traveled by the half circle finned straw 14. Reshape the nose cone on the half circle Repeat steps two more times. 15. Repeat steps for the other seven rockets. 16. Calculate and record the average distance traveled by each fin shaped half circle half heart triangle rectangle parallelogram trapazoid shark fin macaroni In this experiment the shape of the tail fins on a straw rocket were changed to see how the distance traveled by a straw rocket was affected. Eight different shapes (half circle, half heart, triangle, rectangle, parallelogram, trapezoid, shark fin, and macaroni) were created to have the same height on the side where the fin attaches to the 3

4 IN 1. Gather materials: 10 straws, clay, Pitsco mini rocket launcher, card stock, tape, scissors, balance, measuring tape, pencil, lab sheet 2. On the card stock, measure and cut out four of each of the following size triangles: 18 cm in height by 9 cm base; 16 cm by 8 cm ; 14 cm by 7 cm; 12 cm by 6 cm; 10 cm by 5 cm; 8 cm by 4; 6 cm by 3 cm; 4 cm by 2 cm; 2 cm by 1 cm. 3. Cut a piece of tape 18 cm in length. Place the tape along the long edge of the 18 by 9 cm triangle. Tape the triangle to the bottom of the rocket (base lined up with the bottom of the straw). 4. Repeat step 3 for the other three 18 by 9 triangles placing them in a perpendicular pattern at the bottom of the straw. The fins should resemble a cross when looked at from the bottom up. 5. Repeat steps 3 4 with the other straws and other triangle sizes. Leave the last straw without tail fins. 6. Mass out two grams of clay for each rocket's nose cone. 7. Knead the clay to soften it and form a cone shape with each ball of clay. 8. Carefully, press the clay to the opposite end of the straw from the tail fins being sure to center it and to seal the top of the straw completely. Do this for each of the ten rockets. 9. Take the 18 by 9 cm tail fin rocket and place it on the launch tube of the launcher. 10. Adjust the launch angle to 45 degrees. 11. Pull the plunger back to the line labeled "5" on the launcher. Release the plunger. 12. Measure and record the distance traveled by the 13. Reshape the nose cone on the Repeat steps 9 12 two more times for the 18 by 9 cm tail fin 14. Repeat steps 9 13 for the other rockets with the other eight tail fin sizes and the one without tail fins. 15. Calculate and record the average distance traveled by each In this experiment, the size of triangular tail fins on a straw rocket was changed to see how the distance traveled was affected. Triangle fins with measurements where the height was twice the base (18 cm by 9 cm; 16 by 8, 14 by 7, 12 by 6, 10 by 5, 8 by 4, 6 by 3, 4 by 2, and 2 by 1) and no fins were tested. 4

5 IN 1. Gather materials: 7 straws, index cards or card stock, clay, tape, scissors, Pitsco mini rocket launcher, measuring tape, fin template, balance, pencil, lab sheet 2. Using the fin template, draw and cut out four fins. 3. Cut out a piece of tape the length of the edge of the fin that is going to be connected to the Place the tape on the fin. 4. Attach the fin to the end of the straw. 5. Repeat steps 3 4 three more times, making sure the fins are placed perpendicular forming a cross on the bottom. 6. Mass out two grams of clay. Knead the clay to soften it and form it into a cone. 7. Carefully, press the nose cone onto the top of the straw rocket body. Be sure to center it and seal the top of the straw completely. 8. Slip the rocket over the launch tube of the launcher. 9. Adjust the angle to 45 degrees on the launcher. 10. Pull the plunger knob to the line labeled "5" and release the plunger. 11. Measure and record the distance the rocket traveled in centimeters. 12. Reshape the nose cone. Repeat steps 8 11 two more times. 13. Repeat steps 2 12 for an 18 cm, 16 cm, 14 cm, 12 cm, 10 cm, and 8 cm straw rocket body. 14. Calculate and record the average distance traveled by each length of rocket body. In this experiment, the length of the rocket body on a straw rocket was changed to see how the distance traveled would be affected. Eight different body tube lengths ( 20 cm, 18 cm, 16 cm, 14 cm, 12 cm, 10 cm, 8 cm, and 6 cm) were tested. 5