1Two things to know first
"Heavy" isn't the whole story — it's heavy for its size
You need two small ideas. Watch each one happen:
Same-size cubes, different weight
Take a cube of syrup, a cube of water, and a cube of oil — all the same size. The syrup cube weighs the most, oil the least. That's how packed each one is.
Packed things sink under loose things
Put them in water and the more-packed stuff sinks below the less-packed stuff. Heavier-for-its-size goes underneath. Scientists call "how packed" it is its density.
2Two things you might expect
Will pour order decide the tower?
Maybe the order locks it in 🥤
Pour oil first and it's on the bottom forever? It feels like whatever you pour first should stay down there.
Or maybe each one finds its spot 🔁
Or every liquid slides past the others until it reaches the layer that fits its density — no matter the order. Let's test it…
3Pour them in any order you like
Pick the pour order — then watch them settle
Tap the three liquids in any order to pour them in. Watch where each one ends up once everything stops sloshing.
Tap a liquid to pour it. Try pouring oil first — see if it stays on the bottom.
4Now drop three things in
Where will a cork, a grape, and a bead stop? 🍇
The tower is set: syrup on the bottom, water in the middle, oil on top. Now we drop in a cork (light), a grape (heavier-for-its-size), and a glass bead (heaviest of all). The cork is the least packed; the bead is the most packed.
Guess before you drop them
The cork is the lightest object and the bead is the heaviest. So where do the three stop?
Tap your guess to drop them and find out.