Solar System #1
Improved Telescope to study phases of venus.
Galileo
Large rotating ball of gas and dust
Nebula
Place where nuclear fusion takes place in sun.
Core
Name the planets of the solar system in order.
Inertia.
Came up with laws of planets which state planets orbits are elliptical, they move faster if closer to the sun, distance of planets from sun is relates to orbit.
Kepler
Possibly caused the planets to spin
Shockwave from an exploding star
Visible surface of the Earth.
Photosphere.
Name the biggest planet in the solar system
Jupiter
What keeps all the planets in our solar system?
Gravity
Proposed heliocentric model of solar system based on mathematics, observations and work of other scientists.
Copernicus
Asteroid-like bodies which collide to make protoplanets.
Planetesimals
Crown seen only during an eclipse.
Corona
Planet with fastest revolution.
Mercury.
Center-directed force.
Centripetal force.
Explained a geocentric solar system.
Ptolemy.
Ball of dust and gas turns into this after spinning a long time.
Protoplanetary Disk
Outer layer of sun's interior where hot substances rise and cooler sink.
Convective Zone
Planet with water in polar ice caps and largest mountain.
Mars.
93 million miles from Earth to sun.
Astronomical Unit.
No telescope available, first to propose heliocentric model but rejected, first to measure distance from Earth to the sun.
Aristarchus
Formed first from ice-forming compounds condensing.
Gas giants.
Lies below the corona, solar prominences occur here.
Chromosphere
Which planet spins on its side
Uranus
Two objects colliding with such a great force they melt together.
Accretion