Science video project #1 final version

Sience video project #1 (survey preveiw)

2010 A.I.P.C.V. Familiar Fest

This year's familiar fest theme was: "A journey in time". In the familiar fest was food selled, games,contests, and a marathon. There were presentations from every class in the school. Also, stands were organized outside every classroom with alusive decoration according to the theme assigned. I am happy to announce that my grade (sixth grade) won the stand and presentation contest in their category. Our theme was; "The aztec empire".

Vocabulary #15 (Building up and breaking down)

Definitions:

1. fold mountain: a mountain made mostly of rock layers folded by being squeezed together
2. fault-block mountain: a mountain made by huge tilted blocks of rock separated from surroundings by faults
3. weathering: the breaking down of rocks into smaller pieces by natural processes
4. erosion: the picking up and removal of rock particles
5. soil: a mixture of weathered rock, decayed plant and animal matter, living things, air, and water
6. soil horizon: any of the layers of surface to the bedrock below
7. groundwater: water that soaks into soil and rock by collecting in spaces between rock particles
8. humus: material in soil formed by the break down of plant and animal material.

Sentences and illustrations:

1. The most common type of mountain is a fold mountain.

2. A fault-block mountain is made by huge tilted blocks of rocks separated from surrounding rock by faults.

3. Weathering is one of the main forces that are breaking down Earth's surface.

4. Erosion is the picking up and removal of rock fragments and other particles.

5. The end result of weathering is soil.

6. Slowly the soil develops distinct layers, called soil horizons.

7. A groundwater system is something like a river system.

8. Soil can be improved by adding humus.

Vocabulary #14 (Volcanoes)

Definitions:

1. hot spot: a very hot part of the mantle, where magma can melt through a plate moving above it
2. vent: a central opening in a volcanic area through wich magma may scape
3. lava: magma that reaches Earth's surface and flows out of a vent
4. crater: a cuplike hollow that forms at the top of a volcano around a vent
5. cinder-cone volcano: a steep-side cone that forms from explosive eruptions of hot rocks, ranging from particles to boulder
6. shield volcano: a wide, gently sloped cone that forms from flows of lava
7. composite volcano: a cone formed from explosive eruption of hot rock followed by a flow of lava, over and over
8. geothermal energy: heat from below Earth's surface

Sentences and illustrations:

1. A hot spot is a very hot part of the mantle.

2. Vents are central openings found in volcanoes.

3. Lava reaches the surface and erupts through a vent

4. Craters are found at the top of volcanoes.

5. Cinder-cone volcanoes are formed from volcanic eruptions.

6. Shield volcanoes are formed from flow of lava.

7. Composite volcanoes may have beutifully symmetrical shapes.

8. Today scientists are trying to find ways to use geothermal energy.

Vocabulary #13 (Earthquakes)

Definitions:

1. fault: a huge crack in the crust, at or below the surface, the sides of wich may show evidence of motion
2. focus: the point where an earthquake starts, where rocks begin to slide past each other
3. seismic wave: a vibration that spreads out away from a focus when an earthquake happens
4. epicenter: the point on Earth's surface directly above the focus
5. aftershock: the shaking of the crust after the initial shaking of an earthquake
6. seismograph: a sensitive device that detects the shaking of the crust
7. magnitude: the amount of energy released by an earthquake

Sentences and illustrations:

1. There are three kinds of faults.

2. The focus is usually bellow the surface.

3. Seismic waves travel trough the crust.

4. Is in the epicenter where people feel first the ground shaking

5. Aftershocks continue the damage of an earthquake.

6. A seismograph shows patterns in the waves that arrive.

7. The height of a wave on a seismograph is a measure of the magnitude.

Vocabulary #12 (Moving Plates)

Definitions:

1. crust: Earth's solid, rocky surface containing the continents and ocean floor
2. original horizontally: the idea that many kinds of rock form in flat, horizontal layers
3. continental drift: the idea that a supercontinent split apart into pieces, the continents, wich drifted in time into their actual location
4. sea-floor spreading: the idea that new crust is forming at ridges in the sea floor, spreading apart the crust on either sides of the ridges
5. magma: hot, molten rock below Earth's surface
6. plate tectonics: the idea that Earth's surface is broken into plates that move
7. mantle: Earth's layer beneath the crust
8. subduction: where plates collide, the sliding of a denser ocean plate under another plate

Sentences and illustration:

1. During a suden motion of the crust an eathquake or volcanic eruption occurs.

2. The twist or tilted of the rock are signs of original horizontally.

3. Alfred Wegener reasoned the continental drift idea.

4. The sea-floor spreading model was suggested in early 1960's.

5. Magma flows up through the cracks, cools, and hardens into new solid material along the ridges.

6. In late 1960's scientists develop the tectonic plates model.

7. Paltes move around on the lower potion of the mantle.

8. Subduction is part of a cycle.

Vocabulary #11 (Galaxies and beyond)

Definitions:

1. galaxy: a large group of stars held together by gravity
2. Milky Way: our home galaxy
3. spectrum: a band of colors made when white light is broken up
4. expansion redshift: the shift of a spectrum of a galaxy toward longer (redder) wavelenghts due to the expansion of space
5. Big Bang: the beggining of the universe, when the density of the universe was very high
6. background radiation: electromagnetic radiation left over from the big bang
7. quasar: an extremely bright, extremely distant, high energy source

Sentences and illustrations

1. Our closer galaxy is the Andromeda galaxy.

2. The Milky Way is a spiral galaxy.

3. The heated gases of stars produce waves of light, this light produces a spectrum.

4. The expansion redshift is called redshift because the light's spectrum has been shifted to longer wavelenghts.

5. The universe has expanded ever since the big bang.

6. The background radiation is energy left over from the beggining of the universe.

7. Quasars have the size aproximately of the solar system.



Vocabulary #10 (Stars)

Definitions:

1. star: a large, hot ball of gases, wich is held together by gravity and gives off its own light
2. parallax: the apparent shift in an object's location when viewed from two positions
3. light-year: the distance light travels in a year
4. constellation: a number of stars that appear to form a pattern
5. magnitude: the brightness of a star
6. nebula: a cloud of gas and dust in space
7. supernova: a star that explodes
8. black hole: a object whose gravity is so strong that light cannot scape

Sentences and illustrations:

1. Stars are at different distances from Earth.

2. The closer the star is, the greater the parallax.

3. Astronomers use the light-year unit to describe the distances in space.

4. For example, Rigel is a star in the the constellation Orion.

5. The word magnitude is used to describe the brightness of a star.

6. A star begins its life as a nebula.

7. A supernova is a star that explodes.

8. When a star colapse it becomes a black hole.

Vocabulary #9 (The outer Solar System)

Definitions:

1. comet: a ball of ice that orbits the Sun
2. meteroid: a small asteroid (rocky object that orbits the Sun), wich may be far out in the solar system or close to the inner planets
3. meteor: a meteroid that enters Earth's atmosphere and burns with streak of light
4. meteorite: any part of a meteoroid that reaches Earth's surface

Sentences and illustrations:

1. Comets come from the outer fringes of the solar system.

2. Meteoroids are often called small asteroids.

3. We usually see the meteor as a bright streak of light.

4. Meteorites are usually classified into three types.