Magnetic Discovery bottles are a perfect science and sensory activity! The problem is that they rust when you add water. Thankfully, I have found a solution! Now you can make long lasting discovery bottles that don’t rust. Well, I will call them rust resistant…just in case. Here’s our new and improved rust resistant magnetic discovery bottle.
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Magnetic discovery bottles are so fun because you can make the objects dance around! Then when you put a strong magnet on the outside, they come together.
We can’t get enough of these really!
It’s super simple too! Here are the ingredients of this bottle:
- Mineral Oil
- Magnets from the Super Magnet Lab
- Nuts and washers similar to the ones in this set.
- Voss Plastic Water Bottles
Mineral oil is the magic behind this bottle! When you use water, your discovery bottle will rust. However, mineral oil makes this rust-free! Just make sure there is no water in your bottle at all!
You can buy mineral oil at your local grocery store. I found it for $2 on sale. Some dollar stores have it too. Baby oil can also be substituted because it’s main ingredient is mineral oil.
The water bottle I am using is called a Voss plastic water bottle. Voss water bottles are available at some grocery stores, or I have even found them at TJ Maxx.
For magnets, I have the Super Magnet Lab because we get so many uses out of it. However, you could just get a magnetic wand with magnetic chips. Almost everything I put in this sensory bottle we already had around the classroom.
Then super glue the lid to the bottle…just in case! These objects are all choking hazards, so it’s always a good idea to keep checking to make sure the super glue is holding. I put glue on mine about every three to six months with little ones around.
Then enjoy the magic of a magnetic discovery bottle!
Here are some more of my favorites!