Test Review Activity 1 & 2. Open Response #1. Describe the nebular theory of the formation of our solar system ON YOUR ANSWER SHEET. Use and underline these key terms in your writing (nebula, gravity, planetesimals (chunks), nuclear fusion, swirling/rotation, star/sun, mass/matter ).
Inner : Smaller, warmer, rocky, molten metal cores, closer to sun, fewer moons, no rings, denser, shorter years, brighter
Outer: larger, colder, gas /liquid hydrogen and methane, farther from sun, more moons, many rings, less dense, longer years, dimmer
Both: same age, from same nebula, revolve around sun, rotate on axis, spherical
A. The title of this graph is inappropriate. What would be the best title for this graph?
B. What was the number of days in an Earth Year 550 million years ago?
What do you predict will happen to the length of an earth year in 100 million years from now? Why do you think that? (Reading Guide Moon Entry)
Ex: Scale is a particular type of model that is proportional to the actual object that it is representing.
2nd part to question- use
Ex. Shows things too big or small to see for ourselves.
448,000,000 divided by 150,000,000 = 2.986
(explain the distance you calculated according to the scale)