Percent Increase and Decrease Quiz
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Programs & methods
Pi-Day Catapult — Optimize Angle & Tension (Predict vs. Measure) | MS–HS NGSS
Description (NGSS included) Celebrate Pi-Day with a data-driven projectile challenge! Students tune angle and tension on a simple launcher, then predict vs. measure range and compute percent error. Teams graph Range vs. Angle (and optional Range vs. Pullback) and explain results with CER. 🧠📈 🔬 Investigate: hold one variable constant to fairly test the other. 🧮 Model: use a calibration shot or R ≈ (v²·sin(2θ))/g to predict. 📊 Analyze: compare predicted vs. measured; percent error
3rd - 12th
Engineering, General Science, Physics
Pumpkin Catapult Challenge — Fall STEM Activity | Force & Motion Experimen
Description: Launch into fall with this hands-on STEM challenge! Students design and test a mini catapult using simple materials to launch candy pumpkins (or pom-poms). Perfect for teaching force, motion, and energy transfer in a fun, seasonal way. ✅ Low-prep printable worksheet ✅ Covers Science, Technology, Engineering, and Math ✅ Great for early finishers, sub plans, or one-day STEM lessons ✅ Ideal for grades 3–8 Skills Covered: Force & motion Engineering design Measurement & data collect
4th - 8th
Art History, Engineering, Physics
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