P.5 Science Activity - Lava Lamps

The P.5 classes had a lesson on scientific experiments in which they made ‘lava lamps’. It was fun and educational for students to learn about making a hypothesis, following procedures and to understand more about the densities of liquids and gasses.

Add food colouring to water. Drop an effervescent tablet into the bottle.
Add the coloured water to the oil. Water is denser than oil and sinks to the bottom.
“Look at the coloured blobs moving.” “Oh no! It’s overflowing!”
The tablet makes it bubble. “It’s so cool!”


慈雲山天主教小學 Tsz Wan Shan Catholic Primary School
訪客人次: 17990689
地址: 黃大仙蒲崗村道172號
Address: 172 Po Kong Village Road, Wong Tai Sin, Kowloon, Hong Kong
 Tel: 2327 3332
 Fax: 2327 6662
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