Try this fun Valentine discovery bottle to learn about magnets, technology, and science in this simple Valentine magnetic discovery bottle!

If you’re looking for a quick and simple idea for a Valentine STEM activity, this adorable magnetic Valentine discovery bottle is just the thing! Preschoolers will love learning about magnets in this fun activity.

This activity is one of our favorite technology activities for kids!

Valentine Magnetic Discovery Bottle for Preschoolers

Related: Valentine’s STEM Activity Ideas

Magnetic Valentine Discovery Bottle for Preschoolers

This simple magnetic Valentine discovery bottle is a fun way for preschoolers to explore magnets safely. This activity is designed for kids age 3 and up, who will not try to put any magnets in their mouth. Swallowing magnets can be extremely dangerous.

Disclaimer: This post contains affiliate links at no cost to you for your convenience.

What you’ll need to make the magnetic Valentine discovery bottle:

Meodynium coin magnets (be VERY careful not to give these to kids unsupervised!)
Clothespin
Hot glue gun and glue sticks
Felt hearts
Red glitter
Clear school glue
Clear bottle (we used Smart Water)
Heart confetti

Make your magnet wand by stacking 3 or 4 coin magnets together. Glue the magnets to the end of the clothespin with hot glue. Do not let your child play with the magnets without supervision, because although the magnetic grip is strong, it is possible to remove the magnets and swallow them. Only do this project with a child who won’t try to eat the magnets.

Glue a few magnets to the back of some of the hearts.

Pour 1/4 of a cup of glitter and the glue into the water bottle after removing the label (oil helps it come off quick). Fill the bottle with warm water and shake to mix. Add in a few confetti hearts.

Put the magnetic hearts and some of the regular felt hearts into the bottle.

Seal the lid tightly.

Give the bottle to your preschooler to play with. Show your preschooler how the magnetic wand will pick up the magnetic hearts, but it won’t be able to pick up the felt hearts.

Bo really loved this activity and played with the Valentine discovery bottle for over an hour.

Valentine Discovery Bottle STEM Elements

Science: Preschoolers will learn about the basics of magnet science, including the polarity of magnets, magnet strength, where magnets are found, and what makes magnets work.

Technology: Magnets are a fascinating part of technology and used in many pieces of technology from radios to computers.

Engineering: Kids will soon learn that magnets must be facing the right way for the magnetic wand to work.

Math: Kids can count the hearts or see how long it takes for all the glitter to settle.