science 5 Flashcards
(20 cards)
Ptolemy:
Proposed that Earth is at the center of the universe.
Copernicus:
Proposed that the Sun is at the center of our solar system.
Tycho Brahe:
Made precise measurements of planetary positions.
Johannes Kepler:
Discovered the laws of planetary motion.
Galileo Galilei:
Used his telescope to study the night sky.
Isaac Newton:
Developed laws of motion and gravity.
Edwin Hubble:
Developed laws of motion and gravity.
Ursa Major:
Also known as the Big Dipper.
Orion:
A constellation named after a mythological hunter.
Canis Major:
Represents the Great Dog.
Cassiopeia:
Named after a queen in Greek mythology.
Red Giant:
A large cool star that has run out of fuel.
White Dwarf
A small hot star
Main Sequence Star
A star that is fusing hydrogen into helium.
Supernova:
A massive star explosion.
Black Hole:
A region with gravity so strong nothing escapes.
Parallax:
The apparent shift of a star’s position.
Light-Year:
A unit of distance that light travels in a year.
Polaris:
The North Star used for navigation.
