3-11 years

Saturn: lord of the rings 2

困難: ★ ★ ★

Saturn: lord of the rings 1

困難: ★

Icosa planet

困難: ★

Dust in the universe

困難: ★ ★ ★ ★

Observing the Moon

困難: ★ ★ ★

Shadow play

困難: ★ ★ ★

The Earth is round

困難: ★

Solar system model demo

困難: ★

Modelling the night sky

困難: ★ ★ ★

Making a rainbow

困難: ★

Magic levitation

困難: ★

Demonstrating light pollution

困難: ★

Center of mass demostration

困難: ★

Spicy Solar system

困難: ★

Earth a ball

困難: ★

Black hole

困難: ★

As the world turns

困難: ★

The Sun in the local horizon

困難: ★

Solar motion demostrator

困難: ★

How to build a big plywood demonstrator

困難: ★

Projection camera for eclipse viewing

困難: ★ ★

How to make a Solar filter

困難: ★

Refractory telescope

困難: ★

Telescope basis 2

困難: ★

Telescope basis

困難: ★