solar system

• uranus and venus - 2 planets that rotate clockwise
• mercury, venus, earth, and mars - rocky planets
• uranus and venus - icy planets
• saturn and jupiter - gaseous planets
• more than 100x - diameter of sun compared to earth
• 2/5x - diameter of mercury compared to earth
• slightly shorter - diameter of venus compared to earth
• 1/4x - diameter of moon compared to earth
• 1/2x - diameter of mars compared to earth
• 11x - diameter of jupiter compared to earth
• 9.5x - diameter of saturn compared to earth
• 4x - diameter of uranus compared to earth
• 3.5x - diameter of neptune compared to earth
• 1/5x - diameter of pluto compared to earth
• nuclear fusion of hydrogen into helium - where sun's energy comes from
• venus - hottest planet
• before sunrise and after sunset - when is venus the brightest
• like charges - venus repels mercury away due to what?
• east to west - venus rotates from what to what?
• earth - planet that is only slightly bigger than venus
• mercury - planet that venus has a similar temperature to
• moon - celestial body that has the same period of rotation and revolution
• 29.5 days - how many days does it take for a moon to change from new moon to new moon
• moon - what causes tides
• mars - "red planet"
• pluto - has a tilted and elongated orbit
• iron oxide - surface mars is reddish because its soil contains what
• presence of water - what makes mars habitable
• jupiter - fastest rotating planet
• 10 hours - how long does jupiter rotate
• venus - slowest rotating planet
• 243 days - how long does venus rotate