Grade 9 Science
Ch 11 – Review
1)
Key Terms
11.1
chromosphere
corona
photosphere
solar prominences
solar radiation
solar wind
space weather
sunspots
thermonuclear reaction
11.2
asteroid
astronomical unit
comet
dwarf planet
Kuiper Belt
meteor
meteorite
meteoroid (shooting stars)
moon
Oort Cloud
planet
transit
11.3
geosynchronous orbit
optical telescope
probe
radio telescope
rover
satellite
11.1
Be able to identify parts of the sun. ( note: mainly composed of hydrogen gas)
11.2
- Know the order of the planets, the inner (terrestrial) and outer (Jovian) plants, the further they are
away from the sun the longer they take to go around the sun, the largest and smallest, and the location
of the asteroid belt
11.3
Know the four main rocket systems (guidance, payload, propulsion, and structure)
Optical telescopes – collect light rays, light pollution from cities negatively affect viewing, reflecting use
a mirror and one lens, refracting use two lens
Radio telescopes – collect radio waves that are longer than light rays
Canada arm and Canada Arm 2 used on the International Space station.