Where does the water come from in Level 187?

Jenny's sweat forms puddles that can be evaporated into a rain cloud.

What should I do with the sun?

Drag it onto each blue puddle until steam rises and the puddle disappears.

The demonstrated solution evaporates three puddles before the cloud rains on Jenny.

Brain Test 4 level guide

hard 6 colors

Brain Test 4 Level 187 uses the movable sun to evaporate three of Jenny's sweat puddles, growing a cloud that finally rains water on her.

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Wait until Jenny's first blue sweat drop lands and spreads into a puddle on the red track.
Drag the yellow sun from the upper-right sky onto the puddle until the water evaporates and a small cloud appears.
Move the sun away and wait for Jenny to create a second puddle.
Heat the second puddle with the sun until it vanishes and the white cloud becomes larger.
Wait for the third sweat puddle, then drag the sun onto it for the final evaporation.
Release the sun and wait for the enlarged cloud to rain on Jenny and show the green check.

Colors in this level:

Green, Red, Yellow, Blue, White, Gray

Dragging the sun onto Jenny instead of onto the blue puddle.
Trying to tap or feed Jenny the sweat drop directly.
Stopping after the first or second evaporation before the cloud is large enough to rain.

Board notes 5 details

Layout: Jenny runs tiredly on a red track beneath a large yellow sun at upper-right; houses and trees fill the background, and blue sweat drops periodically fall beside her feet.
Goal: Evaporate three sweat puddles with the sun so the accumulating cloud grows large enough to rain on Jenny.
Opening: Wait for the first blue sweat drop to spread into a puddle, then drag the yellow sun down onto it.
Danger Zone: Holding the sun over Jenny does not help, and one evaporated puddle only creates a small cloud; the same cycle must be completed three times.
Mechanics: A repeated sweat-to-puddle-to-steam loop builds one cloud in three stages, converting Jenny's lost water into rain.

Where does the water come from in Level 187?
Jenny's sweat forms puddles that can be evaporated into a rain cloud.
What should I do with the sun?
Drag it onto each blue puddle until steam rises and the puddle disappears.
How many puddles must I evaporate?
The demonstrated solution evaporates three puddles before the cloud rains on Jenny.