Page 471 - Canadian BC Science 9
P. 471
Key Terms
• Big Bang theory • galaxy
• nebulae
• spectroscope
• star clusters
Key Terms
• asteroid
• comet
• moons
• planet
• revolution • rotation
• Sun
Key Terms
• axis tilt
• constellations
• Copernicus
• Kepler
• probe
• Ptolemy
• satellite
• solar and lunar eclipses
• optical and radio telescopes • terraforming
Unit 4 Summary • MHR 453
