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Science experiments to try at home!

Safe science experiments to try at home!

We get it: you’re trying to juggle work with your new career as a home-schooling teacher. Life with COVID-19 is throwing up many and varied challenges for parents.

So Mrs Blackler in Kilgraston’s brilliant Science department has put together a helpful list of safe, home-based science experiments children can try, but always with the help of an adult.

Always make sure experiments are carried outwith the help of an adult

  1. Rainbow wizard’s brew
  • The will teach your child about chemical reactions between acid and baking soda which react to produce carbon dioxide.
  • You will need:

Baking Soda

Water colours or food colouring




Glass jar

Small plastic containers


Step 1: Fill the jar halfway with vinegar

Step 2: Add a few drops of one colour of watercolour paint or food colouring and some glitter.

Step 3: Squeeze in some dish soap, stir, and place the jar on a tray. Step 4: Add in a heaped teaspoon of baking soda, stir again, and watch the foaming begin!

The soap makes it foam rather than fizz. To keep the reaction going continue adding baking soda and vinegar when the foam starts to slow. To make it change colours, add a tablespoon of vinegar mixed with one color of liquid watercolor/food coloring every so often. Make sure to dump the coloured vinegar into the center of the brew.

Source: babbledabbledo.com/20-science-projects-for-preschoolers/


  1. Magic an egg in a bottle
  • This will teach your child how temperature affects pressure, with the match heating the bottle so it expands and the contracting when heat supply disappears.
  • You will need:

Peeled hard-boiled egg (or soft-boiled, if a yolky mess interests you)

Flask or jar with an opening slightly smaller than the diameter of the egg

Paper and match

Don’t forget the adult help

Step 1: Set a piece of paper on fire and drop it into the bottle.

Step 2: Set the egg on top of the bottle (small side pointed downward). When the flame goes out, the egg will get pushed into the bottle.

You can also get the egg out. Please see thought.co.com for more info on this experiment: www.thoughtco.com/egg-in-a-bottle-demonstration-604249


  1. Grow your own lettuce
  • This will teach your child about plant propagation.
  • You will need:

Stumpy of any lettuce you have.

Step 1: Place the lettuce hearts in a shallow container of water.  Make sure the water does not cover the lettuce.

Step 2: Change the water each day.

Make sure your give your lettuce a daily dose of sunshine and within a week you should have lettuce for lunch!

Source: www.littlebinsforlittlehands.com/growing-lettuce-from-stumps-kitchen-science/



  1. Make your own lava lamp–
  • This will teach your child about density and buoyancy experiment.
  • You will need

A clean Transparent PET bottle.

Oil, as an experiment you can try different types of oils and see how this affects you lava lamp.


Alka-Seltzer tablets

Food colouring

Step 1: Fill the bottle about half full of water and add a few drops of food colouring

Step 2: Fill the rest of the bottle with cooking oil,and allow the components to settle and separate

Step 3: Break an Alka-Seltzer tablet into quarters, and drop one piece into the bottle.

Step 4: Watch as the bottle swirls and churns like a real lava lamp!

Source – www.fizzicseducation.com.au/150-science-experiments/kitchen-chemistry-experiments/how-to-make-a-lava-lamp/



  1. Magic milk
  • This will teach your child about creating, mixing and testing amongst other things.
  • You will need:

Milk – any kind

A bowl or casserole dish

Food Colouring or liquid water colours

Glitter (optional)

Liquid dish soap (don’t use antibacterial or it won’t work well)



Step 1: Pour a small amount of milk in a dish, just a thin film that covers the bottom of the dish.

Step 2: Squeeze a few drops of food colouring or liquid water colours into the milk. Add glitter, if desired.

Step 3: Dip the end of the toothpick into the dish soap and then into the centre of one drop of coloured milk. Don’t stir it, just watch the colour explode.

Source – https://sciencekiddo.com/magic-milk-science-for-kids/


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