Lighthouse Lab - Density of Liquids and Solids

#matter #density #ngscience
Learn how to test and observe the density of different solid objects when placed in a density column.
Welcome to the Lighthouse Lab, I'm Chelsea and today we're going to compare the density of solid objects. Density is the amount of matter packed into a given volume.
To do this, I'm going to make a density column using different liquids. I've got honey, dish soap, vegetable oil and isopropyl alcohol.
First I'll add the honey. Now the dish soap. The vegetable oil. And finally the isopropyl alcohol.
The liquids are layered based on their density. The honey is the most dense and the isopropyl alcohol is the least dense.
Now let's see what happens when different solids are placed in the density column.
I'll start with this polystyrene ball. It feels pretty light. Thought so, it floats on top of the isopropyl alcohol.
Next up is this marble. What do you think will happen? Wow, it sinks through all of the liquids and sits on the bottom.
Now I'll add this plastic block. It sinks to the bottom of the cooking oil, but floats on the dish soap.
Next up, the tea candle. The tea candle settles just below the surface of the alcohol.
So in terms of their density, the marble is the most dense, followed by the toy block, the tea candle ... and the polystyrene ball is the least dense.
That's was fun! Thanks for hanging out in the lab and I'll see you soon.

[@jittu88]

Cool

[@markk4000]

i have a question, Why there is a difference (if any) in the experimental and actual value of the density of the samples?

[@danielcole3109]

Great video! 👏

[@MG-zm3ee]

Great video, excellent job!!!

[@NGScience]

Thank you very much!