Video Description -- Popsicle Stick Car Frame
Materials
• 4+ popsicle sticks
• 1 12" wooden stick (thin dowel or chop sticks)
• 1 regular straw
• 4+ plastic bottle caps
• 1 pair of scissors
• 1 hot glue gun (and glue sticks)
Prep
• Plug in your hot glue gun and let it heat up.
• Cut a straw in half.
• Break the wooden dowel in half. Careful for splinters! Make sure the stick halve is slightly longer than the cut straw. Cut off any sharp points.
Procedure
1. Axle Procedures
a. Glue a bottle cap on one end of a broken dowel with your hot glue gun.
b. Drop the straw on one end of the broken dowel so that it is stopped by the cap you just glued on. The goal is for you to "trap" the straw between two glued on bottle caps.
c. Glue the second bottle cap to finish the "trap".
d. Repeat steps 1a-1c with the other dowel piece.
2. Square Frame
a. Glue one end of the 1st popsicle stick on to one side of the straw of the 1st axle. Make sure to glue the stick perpendicular to the axle.
b. Glue the 2nd popsicle stick on to the 1st axle (perpendicular).
c. Glue the 2nd axle to the popsicle sticks (on the straw portions).
3. Make a contraption to make it go!
a. Use a balloon to push your car frame forward!
b. Make a sail!
c. Experiment!
Science
• Wheel and axle is generally considered one of the six simple machines. When you push the wheel, the wheel turns the axle in the same direction the wheel turns (and vice versa).
• The wheel's larger circumference makes the wheel's points turn faster than the points on the axle (they have to go around a larger distance). The points stay lined up this whole time.
• A wheel and axle is a type of lever.
• Gears are a type of wheel and axles.
• What kind of advantage does a wheel and axle give you?
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