Pipe Cleaner Bottle: Magnet Science Experiment

Today I have a fun magnet science experiment for you~ the pipe cleaner sensory bottle!

Magnets are fascinating because they allow kids to see invisible forces in action. Whether you’re investigating attraction, repulsion, or magnetic fields, these activities will spark curiosity and excitement for science.

This magnet sensory bottle is a fun activity for kids of all ages!

Materials Needed:

• A clear plastic bottle (empty and dry)
• Colorful pipe cleaners, cut into small pieces
• A strong magnet (like a bar magnet or a wand magnet)
• Additional small magnetic objects (paper clips, washers, etc.) for extra fun

Instructions:

1. Cut the pipe cleaners into small pieces (about 1 inch each).
2. Drop the pipe cleaner pieces into the empty plastic bottle.
3. Secure the lid tightly (optional, but great for younger kids to prevent spills).
4. Hold the magnet against the outside of the bottle and move it around.
5. Watch as the pipe cleaners stick to the magnet and move!
6. Try shaking the bottle and using the magnet again to see what happens.

What’s Happening?

The metal inside the pipe cleaners is attracted to the magnet, making them move inside the bottle. This is a great way to see magnetism in action!

Experiment Extensions:

• Add non-magnetic objects (like beads or pieces of yarn) to see if they react differently.
• Try different magnets (stronger vs. weaker) and compare the results.
• Use different shapes and sizes of pipe cleaners to observe any changes in movement.

More Fun Magnet Experiments and Activities

Want to dive deeper into magnet science exploration? See also: 40 Fun Magnet Experiments and Play Ideas

Also try a few of these exciting hands-on activities:

1. Milk Cap Magnet Boats

• Float plastic milk caps in water.
• Attach a small magnet inside the cap.
• Use a wand magnet outside the container to move the boat!

2. Magnetic Sensory Bin Treasure Hunt

• Hide magnetic objects in a bin of rice or sand.
• Add some small plastic toys.
• Give kids a magnet wand and let them “fish” for treasure!

3. Paperclip Chain Challenge

• Use a strong magnet to pick up a single paperclip.
• See how many other paperclips it can attract in a chain before they fall!

4. Magnetic Art 

• Sprinkle iron filings over a piece of paper.
• Hold a magnet underneath and watch the filings form patterns!

5. Magnet Maze

• Draw a simple maze on a piece of cardboard- or print mine! 
• Place a paperclip or magnetic marble on the maze and use a magnet underneath to guide it through!

6.  DIY Compass

• Rub a needle or paperclip against a strong magnet about 30-50 times in one direction.
• Fill a shallow bowl with water.
• Place the magnetized needle on a small piece of cork or foam and let it float.
• Watch as the needle aligns itself with Earth’s magnetic field, pointing north!
• This is a great way to explore how Earth itself acts as a giant magnet!

The Science Behind Magnets

Magnets work because of magnetic fields, which are invisible forces that either attract or repel certain materials. The strongest part of a magnet is its poles (north and south). Opposite poles attract (north to south), while like poles repel (north to north or south to south).

Did You Know?

• Earth itself is a giant magnet with a magnetic field that protects us from the Sun’s radiation!
• Not all metals are magnetic—iron, nickel, and cobalt are the most common magnetic materials.
• Some objects can become temporary magnets if they’re exposed to a strong magnetic field!