When I asked Miss 4 if she would like to do a tray activity yesterday, her reply was yes please, with milk and you put shaving foam on the milk and drop colour and stir dishwashing liquid in to make it move- that’s what I would like to do.
Wow! What a brief to meet!
I quickly worked out that she would like to recreate a little science activity that we completed about a month ago.
Did you know that milk reacted with dishwashing liquid? The lipids in the milk dance and swirl around when introduced to the dishwashing liquid!
Leaving shaving foam off the list, to conduct this activity you will need
- Shallow dish /tray
- Full cream milk
- Food colouring (assorted colours for best results)
- Dishwashing liquid
- Small bowl
- Cotton Tips
We started off by squeezing a small amount of the dish washing liquid into a small bowl.
The surface of the your shallow bowl then needs to be covered in milk. You don’t need it to deep for the experiment to be a success- waste not, want not!
Carefully use the pipette to drop the colour around the tray. Leaving space between the colours will make a more impressive impact.
Once the colours are in position, you are ready for the reaction to begin! Dip the end of the cotton tip into the dishwashing liquid in the small bowl and then lower it into the milk.
Within second the fats in the milk will react to the soap. The movement of this reaction will send the colours moving like fireworks!
This activity can open up conversations about the importance of exploring and giving things a go even though your not entirely sure of what might happen.
It’s a safe risk for your child to take and very rewarding!
Some questions you could ask your child could be
- What do you think will happen
- How do you think that happened
- What happens when you mix blue and yellow together
- What would you change if you could do this activity again
- What do you think would happen if we put more soap in
- What do you think would happen if you put less soap in
This is a popular activity at our place. Perhaps we will try it with shaving foam next time. I’ll let you know how that goes.
I hope your kiddies enjoy this dapple with science too!
Dani D x
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