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Science Unit E: Space Exploration
1.0 - 2.0
18
Education
9th Grade
05/27/2014

Additional Education Flashcards

 


 

Cards

Term
Ancient Views of the Cosmos
Definition
Myths, folklore, and legends were used to explain what people observed in the sky.
Term
Solstice
Definition
The shortest and longest periods of daylight.
Term
Summer Soltice
Definition

the longest period of daylight.

(N hemisphere - June. 21)

Term
Winter Solstice
Definition

the shortest period of daylight.

(N hemisphere - Dec. 21)

Term
Equinox
Definition
The periods of equal day and night.
Term
Autumnal Equinox
Definition

in the fall

(N hemisphere - Sept. 22)

Term
Vernal Equinox
Definition

in the spring.

(N hemisphere - Mar. 21)

Term
Geocentric Model
Definition

-discover by Aristotle

-earth was the center of universe

Term
Heliocentric Model
Definition

-discovered by Copernicus

-sun was the center of the universe.

Term
Ellipses
Definition
-Kepler discovered that the orbits of the planets were _____ and added it to Copernicus model.
Term
Merkhet
Definition

-device developed by Ancient Egyptians

-invented to chart astronomical position and predict the movement of stars.

Term
Quadrant
Definition

-also invented by the Ancient Egyptians.

-to measure the star's height above the horizon.

Term
Cross - staff
Definition

-was invented in the 14th century (Levi ben Gurson)

-to measure the angle between the Moon and any given star.

Term
Early Telescope
Definition

-was invented in the late 16th century

-revealed details about the Earth's closest planetary neighbours, and showed the existence of the other neighbours in our solar system.

Term
Astronomical Unit (AU)
Definition

-used for measuring "local" distances, inside our solar system.

-AU is ewual to the average distance of distance from the centre of the Earth to the centre of the Sun (149 599 000 km).

Term
Light - years
Definition

-it equals the distance that light travels in one year.

-used to measure the distances between stars and galaxies.

Term
Looking in the Past
Definition

-when you look into space at an object yuou are seeing it as it was at an earlier time.

-it takes time for the light from the object to travel to Earth across the great distance in space.

Term
Stars
Definition
a hot glowing ball of gas (mainly H) that gives off light E.
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