Science experiments with food – 2
Involving children in all aspects of food is important. It’s great life skills and learning. Getting the children helping can be even more important when they are hesitant or uncomfortable around food.
For children who do struggle to eat, it can be difficult to interact comfortably with food, particularly when the emphasis is on eating.
I love ways to involve children that are low pressure. Doing this away from the dinner table is often the best way to manage this.
Interaction is a keyway to build comfort around food and not having the end goal as eating often makes this achievable for even the most hesitant of children.
In the last blog I listed some science experiments that are fun to do with children of all ages. You can check that out here: https://theconfidenteater.com/blog/other/science-experiments-with-food/
In this blog I continue with more ideas, many really simple, that you can test out at home.
These are also good ways to keep the children entertained during the holidays or on wet weekends. Older children can do them independently too!
Science experiments with food
1. Magic rainbow milk – this is super quick and easy, uses things you have at home and the science behind it can be understood by most children at some level.
Ingredients – Bowl, small jar or saucer, cotton bud, food colouring, milk, dish washing liquid.
i) Pour some milk into a bowl.
ii) Squeeze one drop of several different colours of food colouring into the centre of the milk in the bowl.
iii) Put a little detergent into a jar or onto a saucer.
iv) Dip a cotton bud into the detergent.
v) Touch the tip of the cotton bud to the food colouring in the milk bowl.
vi) Watch the magic happen.
2. Bouncy egg – this is fun but requires lots of time waiting for it to be ready.
Ingredients – egg, jar, vinegar, food colouring (optional)
i) Put enough vinegar in a jar to cover an egg.
ii) Add food colouring (for a coloured egg).
iii) Place egg in the jar and seal.
iv) Wait 3-4 days for the shell to dissolve, you should see it fizz.
v) Take the egg out and drop onto the table from 10 – 20cm height.
vi) Watch it bounce.
vii) When finished, drop from higher to see what happens!
3. Coloured celery – this is a great way to show how water moves through plants. Simple and budget friendly too.
Ingredients – for full experiment follow this. For simpler, you can of course cut down on colours. 4 batons of celery, 4 different food colours, 4 jars.
i) Cut about 2 cm from the bottom of each celery baton.
ii) Pour approx. 10 cm of water into each jar.
iii) Add a few drops of food colouring to the water. Different colours for different jars.
iv) Place celery in the water.
v) Wait for approx. 20 minutes then peel back a couple of the fibres on one side to see if you can see the coloured water moving.
vi) Leave longer and see if you can see the colours reaching the top.
vii) What happens if you leave overnight?
4. Making cheese – this is quick and simple, using ingredients you probably already have at home.
Ingredients – Saucepan, milk, lemon (or vinegar), sieve.
i) Pour milk into a pan on medium heat.
ii) Stir the milk constantly while heating it until it’s steaming and foamy. Do not boil.
iii) Squeeze in some lemon juice (approx. 1/8 cup).
iv) The milk will separate into curds (chunky bits) and whey (liquid).
v) Drain the curds using a strainer.
vi) Place curds on a plate.
vii) The curds are like cottage cheese and can be eaten straight away.
viii) Add salt or honey or fruit for flavour.
5. Magic corn – again this is easy to do, uses basic ingredients and the reaction happens really quickly.
Ingredients – a large, clear glass jar, popping corn, 3 cups of water (slightly less for a smaller jar), 2 tbs of baking soda, 6 tbs of white vinegar. You can use food colouring too if you wish.
i) Pour water into the jar.
ii) Add food colouring, if you wish.
iii) Pour in the baking soda and stir until it dissolves.
iv) Add a small handful of corn kernels.
v) Pour in the vinegar and watch what happens!
6. Mini cyclone *– cyclones (or hurricanes dependent on where you live) can be something children are familiar with. This experiment is a great way to create your own version in a jar.
Ingredients – a clear glass jar, liquid soap (must be opaque not clear and contain glycol stearate), water, food colouring and/or glitter (optional).
i) Pour soap into the jar until ¼ -1/3 full.
ii) Add one to two drops of food colouring and/or 1 tsp glitter.
iii) Add water on top to fill the rest of the jar.
iv) When full, keep adding water until the bubbles overflow and are gone.
v) Screw the lid on tightly and shake to see what happens.
7. Lemon volcano – this experiment gives a quick, visual result and again uses ingredients that you probably already have.
Ingredients – fresh lemon (can use other citrus fruit), baking soda, food colouring, dish washing liquid (optional), shallow bowl, popsicle sticks, lemon juice/other citrus juice (optional).
i) Place half a lemon in the shallow bowl.
ii) Juice the other half (or can do two experiments and use juice from elsewhere).
iii) Poke the popsicle stick into the flesh of the lemon (helps to get the reaction started).
iv) Drop food colouring into the top of the lemon (use one colour or alternating ones).
v) Carefully pour dishwashing liquid over the top of the lemon.
vi) Sprinkle a generous amount of baking soda onto the top of the lemon.
vii) Push the popsicle stick into the flesh to get the eruption going.
These are just a few ideas to create a bit of fun – and some learning.
Science experiments with food can be a good way to engage with children who are not as enthused about cooking. It’s also good for encouraging older children to interact with food.
*thanks to Sue Lively for the idea
Judith, MA Cantab (Cambridge University), Post Grad Dip Psychology (Massey University), is an AOTA accredited picky eating advisor and internationally certified nutritional therapist. She works with 100+ families every year resolving fussy eating and returning pleasure and joy to the meal table.
She is also mum to two boys and the author of Creating Confident Eaters and Winner Winner I Eat Dinner. Her dream is that every child is able to approach food from a place of safety and joy, not fear.
Learn more about Judith here: https://theconfidenteater.com/about/