1. A _______ eclipse occurs when the moon comes between the sun and the earth.   solar   lunar   2. Materials that allow light to pass but through which objects cannot be clearly seen are said to be   opaque   transparent   translucent   Hint Half-n-half Clue   3. The solar eclipse occurs more frequently than the lunar eclipse.   True   False   4. Non-luminous bodies become visible when they _______ light into our eyes.   reflect   refract   radiate   Half-n-half Clue   5. A lunar eclipse occurs when the earth comes between the sun and the moon.   True   False   6. If the power of a light source is measured in candelas and distance in meters, then the illuminance of the surface is in   Watt   Lux   Joule   Half-n-half Clue   7. Materials through which objects can be seen clearly are said to be   opaque   translucent   transparent   Half-n-half Clue