| INFRARED | ___ radiation, that between the visible and microwave regions of the spectrum (8) |
| SEPTUM | A partition separating two chambers, such as that between the nostrils or the chambers of the heart |
| STUMPS | Baffles (ABOUT THIS PUZZLE: If you saw the headline "Fiend Found!" you might instantly notice that, between the two words, only the vowels change - the consonants stay put. Okay, if you were me, you'd |
| RAINBOWS | Arc-shaped displays in the sky of the colours of the spectrum (8) |
| SPECTRUM | Range of electromagnetic radiation, that includes visible light (8) |
| VANALLEN | ____ radiation belts, giant swathes of highly energetic charged particles that surround Earth (3,5) |
| ALBACORE | Tuna occurring mainly in warm regions of the Atlantic and Pacific (8) |
| EYERHYME | Similarity such as that between love and move |
| CIVILWAR | Conflict between regions of the same nation (5,3) |
| IONIZING | Radiation that produces charged particles |
| ULTRARED | Invisible part of the spectrum, nontechnically |
| RAD | Unit of absorbed dose of ionizing radiation equal to the amount of radiation that releases an energy of 100 ergs per gram of matter. (3) |
| GIBBOUS | Between halfway-visible and full, as the moon (anagram of BUGS' BIO) |
| BONDING | The formation of a close attachment, especially that between a mother and child (7) |
| RAINBOW | The arc in the sky that displays the colors of the spectrum |
| ROOFTOP | A white _______ can minimize the amount of heat from solar radiation that is absorbed through roof surfaces of buildings, which can be used to reduce cooling costs and to save energy (7) |
| PHOTON | Quantum of electromagnetic radiation that travels at the speed of light (6) |
| ESKIMO | Member of a people who live in the Arctic costal regions of the US, parts of Greenland and Siberia (6) |
| NOIR | Type of film only showing in visible and ultraviolet light? (4) |
| LOCUST | Insect of warm and tropical regions of the Old World that travels in swarms stripping vegetation (6) |