Describe the sizes of the sun, moon and Earth models given to the participants. Before embarking on the actual activity, what did the participants learn as a result of the size of the models? What were the participants tasked with figuring out and what did they realize they needed to simulate in order to determine their answer?
Describe a solar eclipse.
Discuss what the experiment put into perspective for the participants.

relative dating involves things like higher layers are most recent than rocks lower in the sequence. this can be extended to the known sequence of fossils. rocks containing rabbit fossils are later than those containing dinosaur fossils.  

absolute dating methods mainly use radioactive elements that have known rates of decay and produce recognizable products. for example potassium 40 decays to produce argon. once a rock has solidified the argon is trapped. by measuring the argon and potassium0 you can get an accurate number for the age.  

some other methods are good for archaeological ages. dendrochronology involves recognizing the sequence of tree rings. the orientation of magnetized particles in baked clay can be used to date a fire.

hope this .. .

there really is life in the deepest part

golgi body just took the test on edge