NCEA L1 Science case studies
NCEA L1 Science · Put your knowledge to work in context.
NCEA Level 1 Science is the first of the three NCEA levels described by NZQA, the National Certificate of Educational Achievement - the main qualification for secondary school students in New Zealand. In general, students work through levels 1 to 3 in years 11 to 13 at school, so Level 1 Science is typically a Year 11 course, though the standards and credits are what matter rather than the year you sit them. The NCEA L1 Science case studies are 5 cases and about 2,820 words.
1Kitchen Circuit Overload: Heater, Kettle, and a 20 A MCB
Jordan's flat has a single kitchen circuit protected by a 20 A miniature circuit breaker (MCB) at 230 V. The appliances are a fridge rated 150 W, a kettle 2000 W, a microwave 1200 W, a toaster 900 W, and a new fan heater 2400 W.
633 words, about 3 min2Garden Lime: Two Beds, One Bag, Different pH
At a school community garden, two raised beds are being prepared for silverbeet, which grows best at pH 6.0–7.0. A soil test gives bed A pH 5.2 and bed B pH 6.4.
608 words, about 3 min3Bicycle Braking: Dry vs Wet Asphalt at 15 m
At a school cycling safety session, a student tests braking on a flat asphalt court. The bicycle and rider have a combined mass of 80 kg and travel at 8.0 m/s.
541 words, about 3 min4Camp Pasta Salad: Bacterial Growth and the Reheating Claim
On the last day of school camp, the group packs leftover pasta salad containing mayonnaise, tuna and cooked pasta into a chilly bin. The chilly bin is left in the boot of a car from 9 am to 2 pm; the inside temperature is measured at 24 °C for most of that time.
541 words, about 3 min5Living Room Heat Loss: Double Glazing vs Ceiling Insulation
Alex's living room is 5.0 m × 4.0 m × 2.4 m. On a winter day the inside is 20 °C and outside 10 °C.
497 words, about 2 min