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.

Measuring a Scallop Shell

Inside a harbor nature center, an adult educator holds a ruler across the widest part of an empty scallop shell in a shallow tray. Find 10 objects in this free printable puzzle for ages 10-12.

Difficulty: L2
Suggested age: 10–12 years
Art style: Clean-Line Cartoon
Hidden objects: 10
Format: Printable Color, line art & answer key

Print / Save as PDF Open 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.

Color version Answer key Save to Pinterest

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Can you find them all?

Scallop shell
Ruler
Observation notebook
Water bottle
Binoculars
Camera
Pencil
Compass
Coastal map
Magnifying glass

A little about this puzzle

Inside a harbor nature center, an adult educator holds a ruler across the widest part of an empty scallop shell in a shallow tray. A girl records the observation in a notebook while a boy watches. Moored boats, a breakwater and a lighthouse are visible through the window; heron and lighthouse pictures hang indoors. Ten objects are distributed around the observation counter, windowsill and equipment shelf: a scallop shell, ruler, observation notebook, water bottle, binoculars, camera, pencil, compass, coastal map and magnifying glass. The clean-line cartoon is designed with ages 10–12 in mind. Choose the Color or Line art image, use the picture clues to find each object, and keep the Answer key separate until you are ready to check. The three images can be printed or saved as PDF using your browser.

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.