Use this printable hidden picture for a Halloween search-and-find activity for children ages 10–12. Find 10 hidden objects, including Air control valve, Clear liquid tank and Small air pump. Difficulty: hard (L3). 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. Scene: Ghost Bubbles in the Clear Tank.
At a Halloween science-museum bubble station, a student in a waterproof apron turns an air valve while bubbles rise from the bottom of a clear tank. An educator watches nearby.
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.
At a Halloween science-museum bubble station, a student in a waterproof apron turns an air valve while bubbles rise from the bottom of a clear tank. An educator watches nearby. The left maintenance cabinet holds a graduated cylinder, air pump, spare tube coil and wiping cloth. A timer, flashlight and bubble guide card sit on the right table, with space and fossil exhibits behind.
Objects to find: Air control valve, Clear liquid tank, Small air pump, Timer, Graduated cylinder, Flashlight, Bubble guide card, Waterproof apron, Coiled spare tube, Wiping cloth.
Make it your own
Search on your own, compare discoveries with a partner, or color the line art after finding the objects. Keep the Answer key separate until you are ready to check.
Read the 10 object names together before searching. Say each word, look at its shape, and then find the matching object in the scene.
Object words and observation prompts for this puzzle
Word
Meaning or search cue
Say it
Air control valve
Find the object named Air control valve. Compare its outline and small details with the matching shape in the scene.
Say Air control valve aloud. Can you describe its shape without pointing to it?
Clear liquid tank
Find the object named Clear liquid tank. Compare its outline and small details with the matching shape in the scene.
Say Clear liquid tank aloud. Can you describe its shape without pointing to it?
Small air pump
Find the object named Small air pump. Compare its outline and small details with the matching shape in the scene.
Say Small air pump aloud. Can you describe its shape without pointing to it?
Timer
Find the object named Timer. Compare its outline and small details with the matching shape in the scene.
Say Timer aloud. Can you describe its shape without pointing to it?
Graduated cylinder
Find the object named Graduated cylinder. Compare its outline and small details with the matching shape in the scene.
Say Graduated cylinder aloud. Can you describe its shape without pointing to it?
Flashlight
Find the object named Flashlight. Compare its outline and small details with the matching shape in the scene.
Say Flashlight aloud. Can you describe its shape without pointing to it?
Bubble guide card
Find the object named Bubble guide card. Compare its outline and small details with the matching shape in the scene.
Say Bubble guide card aloud. Can you describe its shape without pointing to it?
Waterproof apron
Find the object named Waterproof apron. Compare its outline and small details with the matching shape in the scene.
Say Waterproof apron aloud. Can you describe its shape without pointing to it?
Coiled spare tube
Find the object named Coiled spare tube. Compare its outline and small details with the matching shape in the scene.
Say Coiled spare tube aloud. Can you describe its shape without pointing to it?
Wiping cloth
Find the object named Wiping cloth. Compare its outline and small details with the matching shape in the scene.
Say Wiping cloth aloud. Can you describe its shape without pointing to it?
Write a short list of the object names, or describe one find while a partner guesses the word. Then return to the picture and look for the next object. See the how-to-play guide for more ways to use the pages.
Printing tips for this puzzle
What is in the three pages?
Page 1 is Color for a picture search, page 2 is Line art for finding and coloring, and page 3 is the Answer key. Switching the preview above does not change this three-page print layout.
Paper size and fit
The print layout uses Letter paper (8.5 × 11 inches) with space around the artwork. For A4, choose Fit to page and check the print preview so every border stays visible. Turn off browser headers and footers to avoid extra dates and URLs.
Print only the page you need
Choose page 2 in the print dialog to print just the Line art. Use it as a coloring sheet or an ink-friendly search page. Choose page 1 for Color, or page 3 for a separate Answer key.
Keep the answer separate
Leave the Answer key on screen until you finish, or print page 3 separately. For a group activity, use individual search pages so everyone can mark their own discoveries at their own pace.
Save a copy from your browser
After the three images finish loading, choose Print and select your printer or Save as PDF. Check the selected page numbers before saving. Personal, family and your own classroom or group use follow the site terms.
Questions about this puzzle
How many objects are hidden in this puzzle?
There are 10 objects to find: Air control valve, Clear liquid tank, Small air pump, Timer, Graduated cylinder, Flashlight, Bubble guide card, Waterproof apron, Coiled spare tube, Wiping cloth. Use the separate Answer key when you are ready to check their locations.
What age is this puzzle for?
The suggested age is 10–12 years. Ages and difficulty are guides: choose a version that feels comfortable, and work together if helpful.
Can I print only the line art page?
Yes. Choose page 2 in the three-page print dialog. Line art can be used on its own for finding and coloring. Page 1 is Color and page 3 is the Answer key.
Do I need an account to print?
No sign-up is needed to print this free set. Open Print / Save as PDF, wait for the three pages to load, and choose your printer or Save as PDF.
Can I use this in a classroom or co-op?
Free puzzles and purchased sets can be printed for personal use, your family, or your own classroom or group under the site terms. Reselling, repackaging or uploading the files to another public website is not included.
Read the usage terms for classroom and group permissions, or contact us if something on this page needs attention.
