Weather and Sky
Three little worlds on one table. Pick one and start fiddling.
You can also drag the sun. It heats the pond best when it is close to it.
The water cycle
- 1EvaporationThe sun warms the pond. Water rises as vapor.
- 2CondensationHigh up the air is cold. Vapor turns into tiny drops. A cloud.
- 3PrecipitationThe cloud gets heavy. Drops fall as rain.
- 4CollectionRain fills the pond. Then the sun starts again.
Cloud fullness0%
Pond water60%
Grandpa Fenn says
Turn up the sun. Watch the pond.
Goal. Make it rain. Rain so far: 0
Drag the Moon around the Earth. The picture on the right shows what we would see from Earth.
What Earth sees
New Moon
Match the phase
Drag the Moon around the Earth until your picture looks like this one. Then tap Check.
The Moon is always half lit by the Sun. We just see more or less of the lit half as it goes around. In Texas, a growing Moon is lit on the right side.
Read the shadow
1.0 sticksshadow length
45°sun height
Slide the time. The shadow is the clock hand.
Shadow riddles