Introduction to Astronomy. 4.26 and 4.29. Warm Up 5. 19 & 5.20. 1. Describes what happens to the usable energy available as you move up the energy pyramid. a. it increasesb. it decreases c . it stays the same d. it increases then decreases
Introduction to Astronomy
4.26 and 4.29
1. Describes what happens to the usable energy available as you move up the energy pyramid.
a. it increasesb. it decreasesc. it stays the same d. it increases then decreases
2. _______________ is part of the saltwater biome.
a. Atlantic Oceanb. Lake Wyliec. Mississippi Riverd. Tundra
3. If a relationship is parasitic (or parasitism), _________________________________.
a. One organism benefits while the other remains unchanged
b. Both organisms benefit
c. Both organisms are harmed
d. One organism benefits while the other is harmed
5.19 & 5.20
Earth’s natural satellite.
240,000 miles from Earth.
- would take a jet 20 days to reach the moon
- takes a space shuttle 3 days
1% of Earth’s mass
27% of Earth’s diameter
Near/light side of the moon always facing Earth (hence the expression “dark side of the moon”)
Light areas = lunar highlands (older rock)
Dark areas = maria (younger rock)
Made of layers:
- core, mantle, crust
Probably formed from a giant collision (page E56-E57)
The Moon’s gravitational pull on the Earth causes tides.
Eclipse – an event during which one object in space casts a shadow onto another.
Lunar eclipse - when the Moon moves through Earth’s shadow
Solar eclipse – when the Moon’s shadow crosses Earth
Read pages E59-E66 in your McDougal Book. Answer the 2.3 Review questions 1-6 on page E66 in your notebook .
Video: “The Universe: The Phases of the Moon”
“A Traveler’s Guide to the Planets”
Ancient Greeks thought our solar system was geocentric (or earth centered)
Aristotle and Ptolemy
Heliocentric – sun-centered
Rotation – A body spinning on its axis. Earth takes 24 hours to make one full rotation. The moon takes approximately 27 days to make one full rotation.
Revolution – When a planet or body travels around another object. The Earth takes approximately one year to revolve around the sun.
My Very Educated Mother Just Served Us Noodles
Objective: The purpose of this experiment is to simulate what happens when objects collide with the moon.
Place several inches of flour into a large plastic tub.
Select 5 objects that you will drop into the container and note their size and shape in your data table.
Smooth out the flour with your spoon.
Drop one object at a time noting its height, angle it’s dropped from, and the force from which it is dropped.
Take notes in your data table about what the impact in the flour looks like after each object is dropped.
Lab report is due next class period!