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
Gingerbread Insulation Lab, Keep the Cookie Cabin Warm! Holiday 3rd-12th
Description How do we keep a gingerbread “cookie cabin” warm in winter? In this hands-on heat transfer lab, teams test everyday insulators (foil, felt, bubble wrap, cotton, foam, paper, etc.) to minimize thermal energy loss. Students design fair tests, collect temperature data over time, and iterate to improve their cabin’s insulation. ❄️🍪🔥 What students do 🛠️ Build a testable “cookie cabin” (small box or graham-cracker cabin—not for eating) with a thermometer port. 🔬 Plan a fair test:
3rd - 12th
Engineering, General Science, Physics
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