8th Grade Science
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Matter & Its Changes Unit.
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NJSLA-S Information
2020 Test Date: May 11 & 12, 2020
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Annual Catapult Challenge
(The Information below is for those that volunteer to bring in a projectile machine)
(The Information below is for those that volunteer to bring in a projectile machine)
Due Dates:
- May - Preliminary design drawings must be submitted and approved.
- May - Each group is required to give a photographic update of their catapult and their team members.
(Email to [email protected] or bring in printed photo)
- June - Final Project must be placed on Newton’s Row BEFORE 1st period.
- June - Credit is awarded only after your machine is removed from school grounds!
Requirements:
- All machines must have a release
mechanism allowing it to remain in “ready position” until triggered.
- Metal springs, bungee cords, rubber bands, or modern elastic
materials must NOT be used.
Small Catapults:
- The length of the lever arm (as measured from the pivot or fulcrum) must not exceed 40 cm (15 ¾ in).
- Projectile is a standard golf ball.
Large Catapults:
- The length of the lever arm (as measured from the pivot
or fulcrum) must equal 1 meter (39 in).
- Projectile is a standard lacrosse ball.