Summary 1

First of all, I am going to explain the types of mountains. Fold montain is like this.

 

A fault block mountain is like this.

 

Now, the difference of erosion and weathering is that weathering is the breaking down of rocks, and some examples are: Plants (the roots), animals, technology, temperature, water and wind.

And erosion is the picking and removal of rock particles.

Soil is divided in three horizons, that are basicly horizon A,B and C.

Those horizons can be broken down by plants' roots, they are so strong that they could even brake rocks.

Vocabulary #11

star: a large, hot ball of gases, which  is held together be gravity and gives off its own light.

parallax: the apparent shift in an object's location when viewed from towo position.

light-year: the distance light travels in a year.

contellation: a number of stars that appears to from a pattern.

magnitude: the brightness os a star.

nebula: a cloud of gas and dut in space.

supernova: a start that explodes.

black hole: an object whose gravity is so strong that light cannot escape it.

Vocabulary #9 & #10

Planet: a large body orbiting a star, such as the sun.

solar system: a star, such as the Sun, and all the objects orbiting it.

asteroid: a rocky, metallic object that orbits the sun.

Kepler's laws: laws that summarize the movement of the planets.

comet: a ball of rock and ice that orbits the sun.

meteoroid: a small asteroid (rock object that orbits the Sun) which may be far out in the solar system or close to the inner planet.

meteor: a meteorid that enters Earth's atmosphere and burns whit a streak of ligth.

meteorite: any part of a meteorid that reaches Earth's surface.

Vocabulary #8

phase of the moon: the sahpe if the lighted part of the moon seen fron Earth at any time.

lunar eclipse: a blocking of a view of the full Moon when the Moon passes into Eart's shadow.

solar eclipse: a blocking out of a view of the Sun when Earth passes through the moon's shadow.

tide: the regular rise and fall of the water level  along a shoreline.

Vocabulary #7

rotation:  a complete spin on an axis.

International Date Line:  the 180° line of  longitude.

stanadard time zone:  a belt 15° wide in longitude in which all places hace the same time.

revolution:  one complete trip arond the sun.

Vocabulary #6

universe: everything that exist.

telescope: a device that collects light and makes distan objects appear closer and lager.

refraction: the bending of wave as they go from one substace to another.

reflection: the boucing of waves off a surface.

wavelength: the distance from one peak to the next on a wave.

frequency: the number of waves that pass through a point in a second.

electromagnetic spectrum: waves of light in order be wavelength.

Vocabulary #5

Inclined plane: a straight,slanted surface that is not moved when it is used.

Screw: an inclined plane wrapped around a central bar.

wedge: one or a combination of teo inclined planes that is moved when used.

compound machine: a combination of two or more machines.

efficiency: a ratio of the work done by a machine compared with the work put into the machine.