Tricky Test 2 Level 97

Overview

The level says "Mix the chemicals." in white text near the top. In the centre of the screen stands a single transparent test tube containing two clearly separated layers of liquid: a bright yellow layer at the bottom and a pink/red layer on top. The two liquids are sitting still, divided by a flat horizontal boundary. There are no buttons, no pouring cup, and no stirring rod on screen, so the only way to blend the two layers is to agitate the tube itself. The puzzle expects you to shake the device vigorously so the two chemicals slosh together and become one uniform liquid.

• Difficulty: Easy
• Estimated moves: 1

Step-by-Step Solution

1. Read the prompt "Mix the chemicals." and look at the test tube. Note the two separate layers: yellow at the bottom, pink on top, with a clear boundary between them.
2. There is no stirrer, no second container, and no "mix" button, so dragging or tapping the liquid will not work.
3. Pick up the device and shake it firmly back and forth, or in-game, grasp the test tube and shake it vigorously. The two layers slosh together.
4. Watch the liquid: the yellow and pink layers blend into a single uniform teal/blue liquid that fills the test tube with no horizontal boundary.
5. As soon as the liquid is fully mixed into one colour, the level clears automatically.

In the recorded walkthrough, two fingers grip the test tube and shake it; the two-coloured layers merge into a uniform teal liquid, which is the completion state.

Strategy & Reasoning

The puzzle is a physics simulation. Two immiscible-looking liquids will only mix if you add energy - shaking. Because the game gives you no tool to stir, the intended interaction is a device shake (or a rapid wiggle of the tube on screen). Tricky Test 2 repeatedly uses the "shake your phone" mechanic in later levels, and a test tube of separated liquids is the canonical setup for it.

Tapping the tube, tilting it slowly, or dragging it around does not create enough motion to break the layer boundary. Only a fast, repeated shaking motion mixes them. Once mixed, the result is a uniform teal colour, which is the visual confirmation that the two chemicals have combined.

There is no trick about which chemical goes where - the goal is simply to remove the visible boundary between the two layers.

Tips & Common Mistakes

• Mistake: Tapping or dragging the liquid trying to stir it. Correct approach: Shake the device rapidly; there is no on-screen stirrer.
• Mistake: Slowly tilting the test tube. Correct approach: A slow tilt just pours the liquid around; you need a fast shake to mix.
• Mistake: Looking for a button to press. Correct approach: The screen has no mix button; the shake is the interaction.
• Mistake: Giving up as soon as the layers wiggle slightly. Correct approach: Keep shaking until the boundary line disappears and the whole tube is one uniform colour.