Straw Rockets |

Learner Outcome: Students will be able
to construct straw rockets and predict how to achieve the longest flight
possible. |

Set up: Pairs of students design
and build straw rockets, launch with a preset force, measure distance,
record and check. |

Objective: Students can design,
build, and test their own miniature straw rockets. They will conduct experiments
by varying the trajectory angle. |

Materials: Pneumatic LEGO elements
for straw rocket launcher (Pitsco-LEGO Education) 1/4 inch diameter straws,
3/16 inch diameter bendy straws, clay, scissors, clear tape, brown tape,
paper, graph paper, pencils, protractors, rulers and yard sticks. |

__Directions:__

1. Build the launcher following the picture
directions. |

2. Cut the straw and stop up the end with
clay. |

3. Test different lengths, weights, and pick
the best. |

4. Test 90 degrees and describe horizontal
displacement. |

5-8. Test and
record the distance for two trials of 0, 30, 35, and 60
degrees. Estimate , then measure lengths of distance traveled to the nearest
1/8 inch . |

9. Average the distance in pair trails. |

10. Collect all classroom data |

11. Find the Mean (average) by hand and check
by calculator, then calculate and record in inches and centimeter. |

12. Have two pairs of students input data
in a spread sheet by having one student say and another input data. |

13. Calculate means and display data for each
trajectory angle. |

14. Each student write up their science journals
describing building and launching procedure.. |

__Evaluation:__ Students can identify
45 degree launch angle as giving longer flights than 0, 30, 60 or 90 degrees.

**
Student's addition and division checks with calculator answers.**
**
Students can show the best outcomes on their graphs.**

__West Virginia IGO's Covered:__

5.10 Use estimation to solve problem and determine
reasonableness |

5.14 Use computation , estimation, calculators
nd computers to solve application problems |

5.20 Solve problems by using guess and check,
make a table, and find a pattern |

5.23 Collect, organize and display, read a
nd interpret numerical data, tables, graph |

5.24 Find the Mean of the given set of data |

5.26 Construct and interpret tables to draw
reasonable inferences or verify predictions using available technology |

5.29 Compare and measure acute angles using
protractor |

5.36 Estimate and measure lengths of real
objects in parts of inch up to 1/8 inch |

5.44 Compute and convert customary units of
measure within the same system in problem-solving situations. |

5.45 Select appropriate tools for measuring
to desired degree of precision. |

5.50 Use calculator to solve application problems |

5.52 Use calculator to find Mean. |

5.53 Use a calculator to convert customary
units to metric units in problem solving situation |

5.54 Use graphing software to organize and
display data by creating table and bar graph. |

5.55 Practice inputting data using correct
keying, editing and formatting techniques. |

**.**

**Picture
Gallery**
**Davis Creek 5/11/99**

__Created By:__*Linda Hamilton**Laura Leadman**Sharon Simon**5/11/99 Updated 26 March
2005*