A curious child peers into one clear stirred drink beside a bowl holding a sugar cube.

Where does dissolved sugar go?

tap the clear drink

Ari saw one cube drop in. After stirring, the water looks clear again. Did the cup lose something—or did Ari's eyes lose the trail?

first, read the tool

A balance compares two pans

Add one ordinary block. Watch which side moves.

No sugar or water yet—this is only how to read the tool.

now follow only what eyes see

Stir until the cube's edges are lost

visible shapecube easy to see

Slider endpoints: before stirring, the cube is visible. After stirring, the cube is no longer visible.

This records sight. It does not show a balance reading.

set up the real test

Record the starting beam

Same cups. Same water. A cube makes the right pan start lower. We mark that beam angle. Now Ari will stir until the cube is unseen, then compare again.

The right pan begins lower, with one visible cube in its water.

As the cube disappears from sight, what happens to the beam?