KA+BOOOOOOOOM

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 * [[image:IMG_0165.JPG width="560" height="420"]]Problem: Does the length of the back loop affect the flight of the glider. **


 * Hypothesis : If we make back loop longer, it will fly further because air will push up on the back loop.**

Materials: Paper, tape,1cm graph paper, straws, scissors and measuring tape.



= = = = = = = Are procedure: = = 1st step: Cut the rectangle with the graph paper = = (Back loop should be bigger then a front loop) = = = = 2nd step: Tape the loop on the back of the straw. = = = 3rd step: Tape the middle of the straw with 23 cm of scotch tape 4th step:Build 4 other gliders with a different size of recorded the average and put them in a chart.
 * || 1st || 2nd || 3rd || average ||
 * Prototype || 301 || 285 || 310 || 299 cm ||
 * 2 glider || 668 || 793 || 741 || 734 cm ||
 * 3 glider || 610 || 540 || 472 || 541 cm ||
 * 4 glider || 516 || 355 || 387 || 419 cm ||
 * 5 glider || 651 || 610 || 620 || 627 cm ||

** W ** e keep the same height, strength and angle to throw glider (control variable)

sources of error: we didn’t control how hard we throw, angel that we throw
All are gliders with there sizes: Are prototype: back loop 8cm long and 2 cm wide front loop 8cm long and 2 cm wide straw 20 cm long.

Glider number 2: back loop 12 cm long and 2 cm wide front loop is the same as the first glider straw 20 cm long.

Glider number 3: back loop 16cm long. and 2 cm wide front loop is the same as 1 glider straw 20 cm long.

Glider number 4: back loop 18 cm long and 2 cm wide front loop is the same as the 1 glider straw 20 cm long.

Glider number 5: back loop 22 cm long and 2 cm wide front loop is the same as the 1 glider straw 20 cm long.