Learners model how an ocean of molten rock "magma" produced the Moon's oldest rocks. Dense materials in the molten mixture sank, while the least dense materials floated to the top and cooled to form the light-colored areas we see on the Moon today.... (View More) Children create a simple model of this process by mixing household materials of different densities in a bottle and allowing them to settle into separate layers. They decide which materials make the best model for the infant Moon. This activity is part of Explore! Marvel Moon, a series of activities developed specifically for use in libraries. (View Less)

This is an activity about image analysis. Learners will create a map of the room and discuss the perspectives shown in their drawings and how this relates to satelite images. Participants brainstorm a list of features that might be recognizable in... (View More) satellite photos, search the Earth Images for these features, and place the images in categories depicting these features. This is activity 2 of 9 in Mars and Earth: Science Learning Activities for After School. Note: Earth image set that is needed to do this activity is on p. 43 of the guide (see Related & Supplemental Resources to the right). (View Less)

This is an activity about modeling and the scientific process. Learners will discuss the models they created in the previous three activities as models of forces that shape the surface of planets, and talk about the similarities and differences... (View More) between models and real events. Then they brainstorm a list of questions and suggest ways scientists might find answers. This is activity 7 of 9 in Mars and Earth: Science Learning Activities for After School. Note: The Mars image set that is needed to do this activity is on p. 37 of the guide (see Related & Supplemental Resources to the right). (View Less)