🕵️ The Mystery Briefing

A suspicious package has arrived at Maths HQ. Inside are four mystery items labelled Item A, Item B, Item C, and Item D. The identity of the heaviest item — the Mastermind Object — must be uncovered before time runs out!

Your mission: Use the scales provided, the clues below, and your mathematical reasoning to measure, calculate, and crack the case. Record all findings carefully — your worksheet is your evidence file!

⏱️ You have 25 minutes. Good luck, investigators!

📋 Part 1: Measurement Log — Record Your Evidence

First, estimate each item's weight. Then use the scales to measure and record the actual weight.

Item A
My estimate: _________ g     Measured weight: _________ g

Item B
My estimate: _________ g     Measured weight: _________ g

Item C
My estimate: _________ g     Measured weight: _________ g

Item D
My estimate: _________ g     Measured weight: _________ g

Item A: _________ kg     Item B: _________ kg     Item C: _________ kg     Item D: _________ kg

🔍 Part 2: Crack the Clues

Use your measurements and the clues below to solve the mystery. Show all working in the boxes provided.

🏆 Part 3: Solve the Mystery & Exit Quiz

Lightest: _______ → _______ → _______ → _______ :Heaviest

2,500 g = _________ kg      1.75 kg = _________ g      3 kg 400 g = _________ g