Water Balloon Science Experiment

April 20, 2021
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Kids love playing with water, which makes learning from water balloon experiment so engaging and exciting. This water balloon science experiment is a great way to help children explore density for kids  with outrageously FUN water experiments! Try this science experiments with balloons and water as an EPIC  summer activity for kids with kids of all ages from preschool, pre-k, kindergarten, first grade, 2nd grade, 3rd grade, 4th grade, 5th grade, and 6th graders too!

Kids love playing with water, which makes learning from water balloon experiment so engaging and exciting. This water balloon science experiment is a great way to help children explore density for kids  with outrageously FUN water experiments! Try this science experiments with balloons and water as an EPIC  summer activity for kids with kids of all ages from preschool, pre-k, kindergarten, first grade, 2nd grade, 3rd grade, 4th grade, 5th grade, and 6th graders too! 
 

Water balloon experiment

My kids have been obsessed with experiments exploring the properties of water lately. In a recent science fair my son did a presentation on “does it float” and played with a variety of different concepts. Since we have already done quite a lot of flotation experiments and water projects for kids, I knew I was going to have to come up with something unique and different to capture their imagination.  This water balloon experiment is such a fun summer science project that will not only delight young learners, but teach too! This wter balloon science experiment is fun for preschoolers, kindergartners, and elementary age students in grade 1, grade 2, grade 3, grade 4, grade 5, and grade 6. My kids absolutely loved this balloon science experiment and keep asking to do it again and again.

Water Balloon Science Experiment

The idea of this density experiments for kids is to explore what liquids float, and which ones sink, by filling water balloons with different liquids. Whether you are a parent, teacher, or homeschooler – you will love this project. Add this to your summer science program, summer learning, science camp, and your summer bucket list. No matter how you use this – it is a memorable, engaging way to help kids explore the density of liquids!

water balloon science project

Science experiments with balloons and water

What do I need for this water experiment?

  • A large container filled with water. Look for something with a depth of at least double the size of your water balloons when they are filled. Deeper is even better!
  • Water balloons
  • 60mL Syringe
  • Different liquid solutions (some ideas: water, vegetable oil, corn syrup, salt water, sugar water, juice, etc.)
  • Permanent marker

Science Experiments with Water

I highly recommend you do this activity outside. Water balloons are very easy to pop! I also recommend you fill multiple balloons with each type of liquid. That way if one pops you have some back ups.

density-science-project

Density experiments for kids

Water balloons are meant to be filled under pressure. Using the syringe you can easily fill the balloons. We found a 60mL syringe made perfect, egg sized water balloons. Simply wash well after each type of liquid so you don’t cross contaminate.

Here are some ideas for what to put in your balloons:

  • lamp oil
  • rubbing alcohol
  • vegetable oil – One note of caution: We found vegetable oil tended to weaken our water balloons making them more prone to popping. We did not experience this with any other liquid type, only vegetable oil.
  • dish soap
  • milk
  • maple syrup
  • corn syrup
  • honey
  • salted water

Filling the balloons with a syringe is a fantastic fine motor strengthening activity, but prepare them outside or in an easy to clean up space, as it can get messy.

using a 60mL syringe fill the water balloons with various different liquids to perform the density experiment

Water Experiments

As you fill each balloon make sure you label it so they don’t get mixed up.

Once your balloons are filled, head over to your container. This is the perfect time to ask for some predictions. Will it sink or will it float? Then place your balloons in the water and watch what happens.

cool-summer-science-experiments-for-kids

Balloon science experiment

The science behind this water balloon experiment

Different types of liquids have different densities. In this experiment we are able to see which liquids have a greater density than water causing them to sink, and which ones are less dense than water, which allows them to float.

 

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    Beth Gorden is the creative multi-tasking creator of 123 Homeschool 4 Me. As a busy homeschooling mother of six, she strives to create hands-on learning activities and worksheets that kids will love to make learning FUN! With over 20 years educating children, she has created over 1 million pages of printables to help teach kids alphabet, math, science, English grammar, history, and so much more! Beth is also the creator of 2 additional sites with even more educational activities and FREE printables - www.kindergartenworksheetsandgames.com and www.preschoolplayandlearn.com. Beth studied at the University of Northwestern where she got a double major to make her effective at teaching children while making education FUN!

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    One Comment

    1. A great way to keep the children occupied, fun and educational too. A good way to socialize.

      Reply