Fun With Liquids for Kids

Hi All,

I wanted to introduce liquid density concept for my son and have fun

I am going to share how to build Ocean in a bottle and Oil Timer, using everyday items, found at home

Kids can do this by themselves with little Adult supervision and have fun

Material Needed

• 2 Plastic bottles ( small sized, cola bottles)
• 1 Straw or thin pipe
• Super glue
• Water ( Distilled water prefered )
• Blue Water color
• Vegetable oil

How to make ?

• Super glue two bottle caps and puncture/drill holes large enough for the pipe to pass
• The pipes must fit tight, if you feel they are loose use can use super glue to hold them
• The pipe height is adjusted as per the image ( It should not be at same height, keep 0.5 inch gap)
• Add water to one of the bottles and add (water based) blue color in it, till you are happy with the shade
• Close the cap while applying super glue
• FIll Oil into another bottle, till the rim edge
• Now with a swift action invert the bottle with water and close the cap

Video

Link may not work on app

Material Needed

• 1 Plastic bottles
• Super glue
• Water ( Distilled water prefered )
• Blue Water color
• Vegetable oil

How to make ?

• Add water to the bottle ( half filled)
• Add blue color till you are happy with shade
• Add Oil till the rim edge, removing as much as air
• Super glue the bottle cap to the bottle while closing

Video

Link may not work on app

I noticed after a day playing with them, the clarity in the oil went bad. This was because of impurities in water that got emulsified in oil.Let the bottles sit for a day, all dirt / impurities settle as a small layer just above water and below oil

Carefully remove oil and then water using a straw or pipe and fill them up again