They can choose strawberry jam for a cool star, orange maramalade for an average stars, or grape jelly for the hottest star. Explain to the children that stars are buring hot. Scientists can tell how hot a star is by its color. The coolest starts are red. Orange,yellow and greenish stars are hotter.
White starts are even hotter, and blue stars are the hottest.
Other Sites Need to find the constellations for your area. The University of Michigan site has list of the constellations for the Northern and Southern Hemispheres . This list is furthered divided into circumpolar and seasonal constellations. Some constellations never rise nor set, and they are called circumpolar. All the rest are divided into seasonal constellations.