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    Home » Early Years Science » Preschool Science » Paddling Pool Science Experiments

    Paddling Pool Science Experiments

    June 22, 2022 By Emma Vanstone 7 Comments

    The last two days have been so hot in the UK that we’ve had the paddling pool out, so it seemed like the perfect time to try some water based investigations.

    For each mini investigation I asked the children a question and then we discussed what we thought would happen and why.

    I’ve also got lots of non paddling pool water experiments you can try!

    5 things to investigate in your paddling pool

    Will the sun make the water warmer?

    My 5 year old thought the sun would heat the water up if we left the water in the paddling pool during the hottest part of the day. We didn’t use a thermometer as I didn’t have one to hand, but in retrospect that would have been a good idea.

    hosepipe spraying water into a paddling pool

    We found that the water was much warmer if the paddling pool was filled up in the morning and left for a few hours in the sun, rather than just filled and used immediately.

    Can you make a boat move?

    We used a small plastic boat. Z tried to move it by blowing initially which worked well, but found he could make it move much faster by placing the hosepipe behind it. We had lots of fun making the boat race around the pool.

    Another idea is to make and test your own boats made from recycled materials.

    a small plastic boat floating in a paddling pool

    Will the water level rise if we all sit in the pool?

    We decided the water level would rise, but the children couldn’t tell me why. So we tried it, and the water did rise a little bit. Do you know why this is?

    It’s all down to the Archimedes Principle!

    Will a heavy ball float?

    Everyone thought the heavy ball would sink but it floated!

    If you can find a ball that does sink, try covering it with bubble wrap. It should now float as the addition of bubble wrap makes it less dense.

    Objects need to be less dense than water to float.

    a ball floating in a paddling pool for a series of paddling pool science investigations

    More Science in the Paddling Pool

    Try making boats with tin foil and investigating to find out how many coins you can put in them before they sink.

    tinfoil boat for a STEM challenge

    Mix sand with a little water in a small pot or tray and leave in the sunshine while you splash around. The water will evaporate leaving just the sand behind.

    sand and water in a turtle shaped plastic container for an evaporation investigation

    Freeze some plastic fish into ice cubes with string and do some paddling pool fishing!

    Ice cube with small fish toys inside and some string

    Make a small toy figure float

    Use materials from around the house to make a small toy figure float!

    superhero toy and a selection of materials to help it float for a science challenge

    Can you think of any more science for the paddling pool?

    Image of a paddling pool, balls and a boat for summer science in the garden

    Last Updated on June 22, 2022 by Emma Vanstone

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    Safety Notice

    Science Sparks ( Wild Sparks Enterprises Ltd ) are not liable for the actions of activity of any person who uses the information in this resource or in any of the suggested further resources. Science Sparks assume no liability with regard to injuries or damage to property that may occur as a result of using the information and carrying out the practical activities contained in this resource or in any of the suggested further resources.

    These activities are designed to be carried out by children working with a parent, guardian or other appropriate adult. The adult involved is fully responsible for ensuring that the activities are carried out safely.

    Reader Interactions

    Comments

    1. shannonniebuhr

      July 28, 2012 at 4:20 pm

      You’ve tried a sink/float experiment already with “a heavy ball,” and you could continue along those lines with sticks, rocks, etc. Some questions I’m going to address when the South African summer comes along, with our 2 1/2 year old, are: how much food coloring does it take to color the water? Could something like a piece of paper crumpled up stay dry in an upside-down bowl (like a diving bell)? If you take your hand or foot out of the water, does it feel warmer or cooler and why (evaporation)? My blog is at jozikaroo.com, and we’ll post those experiments when the time comes and link back to you!

      Reply
    2. Jane @ Mama Pea Pod

      August 02, 2012 at 1:35 pm

      Great, simple ideas! As I sit here reading this my kids are in the paddling pool right now. Must go see if I can interest them in any of these ideas! Thanks for sharing at the Outdoor Play Party.

      Reply
    3. Carrie

      August 03, 2012 at 8:06 pm

      Oh, some wonderful ideas!! We are just getting some hot weather and I think our pool will be coming out this weekend. Thank you for sharing at Sharing Saturday!!

      Reply

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