Biology  by Bradford
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Free · AP Chemistry · Unit 3

Properties of Substances and Mixtures escape room

The Perfume Distillery Lockdown

A late shift at an old perfume distillery has gone wrong: a gas alarm tripped, and the building sealed every door with your team still inside. The safety system will only release the locks for chemists who can explain why some liquids boil away at a breath of warmth while others cling to their flasks. Five locks stand between you and the loading dock. Each lock sets four questions, and your answers decode into its combination. Hurry: the ventilation is off, the stills are still warm, and the vapor in the air is building by the minute.

Play it onlineTeacher pack (PDF)
  • 5 locksfour multiple-choice questions at each, 20 in all
  • About 45 minutesfor a team of three or four
  • Online or on papera link to play, or the pack to print
  • ForAP Chemistry classes, every value a question needs given (calculations on the AP equation sheet and periodic table)
  • Play linkbiologybybradford.com/escape/apc3

The five locks

Each lock’s four answers are decoded with its puzzle into a four-digit combination, so one wrong answer keeps it shut. The questions climb from recall to evaluating evidence.
  1. Lock 1 · Recall

    Bottling Hall Door

    Pathway Easy

    Start at your letter and go straight down. Every time you meet a rung, cross it. Your digit is where you finish.

  2. Lock 2 · Understand

    Essence Cellar

    Petri dishes Easy

    Each letter is a petri dish. Count the colonies growing in it.

  3. Lock 3 · Apply

    Gas Cylinder Store

    Overlay Medium

    Only segments lit on BOTH panels count. Read the number they make.

  4. Lock 4 · Analyse data

    Quality Control Lab

    Light panel Medium

    Add up the numbers above the shaded squares. Careful: every row puts them in a different order.

  5. Lock 5 · Evaluate

    Master Still Hatch

    Magic square Hard

    Every row, column and diagonal adds up to the same total, but you have to work out what it is first. One square is blank.

Lock 1, as a team sees it

The first four questions and their decoder. The answers, and the reason for each, are in the teacher pack.

  1. Which type of intermolecular force acts between the particles of every molecular substance, polar or nonpolar?

    1. A Dipole-dipole forces
    2. B Hydrogen bonds
    3. C London dispersion forces
    4. D Ion-dipole forces

  2. A solid has a high melting point and is brittle. It does not conduct electricity as a solid but does when melted. What type of solid is it most likely to be?

    1. A Ionic solid
    2. B Metallic solid
    3. C Molecular solid
    4. D Covalent network solid

  3. Absorbing photons from which region of the electromagnetic spectrum causes transitions between the vibrational energy levels of a molecule?

    1. A Microwave
    2. B Ultraviolet
    3. C Visible
    4. D Infrared

  4. Which description fits the particles in a sample of a liquid?

    1. A Far apart, moving fast in straight lines between collisions
    2. B Close together and touching, able to slide past one another
    3. C Close together and touching, held in fixed spots and vibrating
    4. D Far apart, but held in fixed spots by strong attractions

Pathway

Easy

Start at your letter and go straight down. Every time you meet a rung, cross it. Your digit is where you finish.

ABCD4702

Running it

  1. Online: send teams the play link. They answer a lock’s four questions, decode the letters and enter the combination; after lock 5 they get a completion code to show you. Nobody needs an account.
  2. On paper: sign in (free) and print the teacher pack: question cards, the five decoders, a guide and the answer key with a reason for every answer.
  3. Your version: Edit a copy from the library to change any question, then play and print it by its own code, or build a room from the topics your class has covered.

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