A Slow Brush Pass Across the Glass Wall – full-color hidden picture puzzle with 8 objects to find
Color version — explore the scene and find all 8 hidden objects.

Choose a version to take a closer look. Line art doubles as a coloring page. Open the answer key when you are ready to check your finds.

Mecha Engineering

A Slow Brush Pass Across the Glass Wall

Find 8 hidden objects in this printable hidden picture for children ages 7–9. Explore the Mecha Engineering scene: A Slow Brush Pass Across the Glass Wall. Difficulty: medium (L2). Includes Color / Line art / Answer key. Use Line art for coloring. Check your finds with the Answer key. Browser printing can also save as PDF.

Inside an original science museum demonstration room, a two-footed cleaning mecha presses its guarded wrist roller against a low, fixed glass sample panel. A collection trough beneath the glass catches water.

Difficulty
L2
Suggested age
7–9 years
Art style
Color Comic Illustration
Hidden objects
8
Format
Printable Color, line art & answer key
Print / Save as PDFOpen line art image

3-page print layout: 1. Color · 2. Line art · 3. Answer key.
Choose Print, then your printer or Save as PDF. Choose page 2 to print just the line art.
Free for personal and classroom use. No sign-up needed.

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Can you find them all?

  • guarded roller brush
  • water collection trough
  • rubber squeegee
  • narrow-spout refill bottle
  • waterproof apron
  • foam wiping block
  • coiled water hose
  • child observation board

A little about this puzzle

Inside an original science museum demonstration room, a two-footed cleaning mecha presses its guarded wrist roller against a low, fixed glass sample panel. A collection trough beneath the glass catches water. An adult demonstrator wears a waterproof apron and holds the control, while a child watches from outside the foreground rail with an observation board. A utility trolley carries a squeegee, refill bottle, foam block, and coiled hose. A globe, rockets, and a dinosaur skeleton appear in the background.

Make it your own

Use the three-page print layout: Color on page 1, Line art on page 2 and Answer key on page 3. Choose your printer or Save as PDF in the print dialog. For A4 paper, choose Fit to page.

Try it together at home, as a calm classroom activity, or as a quiet travel companion. Keep the Answer key separate until you are ready to check.

A few more discoveries

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