We love easy science experiements, but they have to be fun science experiments too! Here are a few of our favourite science experiments for preschoolers and older kids to enjoy. The skittles science experiment is a favouite as it is really easy to set up and the reaction is almost instant. The magic milk experiment is a lot of fun too, and again kids will be amazed by the reaction that takes place.
The rainbow baking soda science experiment is another science project that will definitely capture the kids attention as is our DIY lava lamp science experiment.
If you dont mind a bit of mess, playing with frozen oobleck is lots of messy fun and children will learn a lot of science as they play without even realising it! The same could be said for painting with ice paints or getting invloved in some ice play. Learning science through play can be so much fun!
The most recent science experiment that we have enjoyed doing was the rainbow walking water science experiment. You could even use the jars of coloured water created from the walking water experiment for the colour changing flowers experiment that we are sharing today.
If you are interested in science experiments using edible items then check out our popcorn experiment or our candy cane experiment.
Below you will find step-by-step instructions for the colour changing flowers science experiment. This flower experiment is easy to set up with only a few supplies needed. We hope that you have fun with this cool science experiment for preschoolers or older kids to enjoy!
MORE science experiments for kids
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You can use any white flowers for this colour changing flower experiment, we used large white daisys, but you could use white roses or carnations. The important thing is to use white flowers so that you can see the colour changes clearly.
Make sure that you cut the stems diagonally across the bottom so they can drink up the coloured water easily. It is also important to make sure that the flowers are fresh, this colour changing flowers experiment won't work so well if the flowers are beginning to wilt.
It would be fun to try out a selection of different white flowers to see which work best.
Before beginning this fun science experiment it is important to make sure that you have all your supplies ready and to hand. If you are planning to make this an experiment for preschoolers this is extra important as their attention span is shorter than that of older children.
Talk to your child about the experiment that you are planning to do and discuss what might happen. You could ask them to draw a picture of what they predict will happen. We have included a simple science experiment printable that you could use to record your child's predictions and then later the results. You can find this printable science experiment worksheet if you scroll down below.
SCROLL DOWN FOR THE FREE SCIENCE EXPERIMENT PRINTABLE WORKSHEET
Pour water about half way in each of the glass jars and then add a few drops of liquid water colour (or food colouring) to each jar. The more colouring you add the deeper the colour on the flower petals will be. To get brightly coloured flowers like those in the images we added 10 drops of liquid watercolour to each jar of water.
To prepare the flowers for this colour changing flowers experiment you will need to cut them so that they are slightly taller than the jars that you are using. You will need to cut the bottom of each flower with a diaganol cut so that the flower can easily drink the coloured water. Make sure (as mentioned above) that you use fresh white flowers so that you can see the full colour changing effect.
Place one flower into each jar of coloured water (or more if you want!) and then watch as the flowers change colour.
The flowers won't change colour instantly, but after an hour or so you will start to see a little colour appearing on the petals. After a few hours the petals will all begin changing colour and if you leave the flowers in the coloured water overnight the colour will continue to get deeper. The flowers in the images below were left overnight.
Daisy (aged 3) loved that she was able to make her own rainbow flowers. She was especially impressed the following moring when the flowers had changed into brightly coloured flowers.
She loved making her own bunch of rainbow flowers before taking them over to her mud kitchen to play with them.
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If your little one enjoyed this science activity you might want to take a look at our other easy science experiements too! Here are a few of our favourite science experiments for kids
Skittles science experiment
Walking water science experiment
Magic milk experiment
Frozen oobleck
Ice play
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Below you will find step-by-step instructions for the colour changing flowers science experiment. This flower experiment is easy to set up with only a few supplies needed. We hope that you have fun with this cool science experiment for preschoolers or older kids to enjoy!
MORE science experiments for kids
MORE FUN SCIENCE PROJECTS FOR KIDS
Colour changing flowers science experiement for preschoolers
I have provided product links for your convenience. We are a participant in the Amazon Service LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliates sites at no cost to you.
Supplies needed for the colour changing flowers science experiment
- White flowers
- Glass jars (we used baby food jars)
- Scissors
- Liquid water colour or food colouring
- Water
What are the best flowers to use for the colour changing flower experiment?
You can use any white flowers for this colour changing flower experiment, we used large white daisys, but you could use white roses or carnations. The important thing is to use white flowers so that you can see the colour changes clearly.
Make sure that you cut the stems diagonally across the bottom so they can drink up the coloured water easily. It is also important to make sure that the flowers are fresh, this colour changing flowers experiment won't work so well if the flowers are beginning to wilt.
It would be fun to try out a selection of different white flowers to see which work best.
How to set up the colour changing flowers experiment
STEP 1: Get your supplies ready for the flower experiment and predict what will happen
Before beginning this fun science experiment it is important to make sure that you have all your supplies ready and to hand. If you are planning to make this an experiment for preschoolers this is extra important as their attention span is shorter than that of older children.
Talk to your child about the experiment that you are planning to do and discuss what might happen. You could ask them to draw a picture of what they predict will happen. We have included a simple science experiment printable that you could use to record your child's predictions and then later the results. You can find this printable science experiment worksheet if you scroll down below.
SCROLL DOWN FOR THE FREE SCIENCE EXPERIMENT PRINTABLE WORKSHEET
STEP 2: Fill glass jars with coloured water
STEP 3: Prepare the flowers
To prepare the flowers for this colour changing flowers experiment you will need to cut them so that they are slightly taller than the jars that you are using. You will need to cut the bottom of each flower with a diaganol cut so that the flower can easily drink the coloured water. Make sure (as mentioned above) that you use fresh white flowers so that you can see the full colour changing effect.
STEP 4: Place the flowers into the coloured water
Place one flower into each jar of coloured water (or more if you want!) and then watch as the flowers change colour.
How long does it take to change the colour of a flower with food colouring or liquid watercolour?
The flowers won't change colour instantly, but after an hour or so you will start to see a little colour appearing on the petals. After a few hours the petals will all begin changing colour and if you leave the flowers in the coloured water overnight the colour will continue to get deeper. The flowers in the images below were left overnight.
The science behind the colour changing flowers science experiment.
This easy science experiment for preschoolers gives you the perfect opportunity to talk to your child about how a plant drinks water. The coloured water used in this experiment demonstrates how water is sucked up through a plants stem and then makes it's way to the different parts of the plant including the flower. This fun experiment is a perfect beginners science experiement for children who want to learn about how flowers absorb water.
She loved making her own bunch of rainbow flowers before taking them over to her mud kitchen to play with them.
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If your little one enjoyed this science activity you might want to take a look at our other easy science experiements too! Here are a few of our favourite science experiments for kids
Cool Science Experiments for Preschoolers (and older kids too!)
Skittles science experiment
Walking water science experiment
Magic milk experiment
Frozen oobleck
Ice play
This colour changing flowers science experiment for kids is a perfect beginners science experiment for preschoolers. We hope that your child has had fun exploring and discovering new things as they have tried out this cool science experiement.
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