| 100% | RADAR | 5 | Aircraft equipment used to determine the range and velocity of oncoming objects: Abbr. |
| 35% | ASTROLABE | 9 | Medieval instrument used to determine the altitude of the sun |
| 34% | BALL | 4 | ___ of snow, rolled object used to build the head and body of a snowman |
| 33% | GPS | 3 | Navigational system involving satellites used to determine the position of a receiver on Earth |
| 33% | PALETTE | 7 | The range of shades used to decorate a room |
| 29% | HEATER | 6 | Equipment used to raise the temperature |
| 29% | DECISIONTREE | 12 | Graph used to determine the best course to take |
| 28% | CODEWORDS | 9 | Lexicon used by spies, and a key to the ends of the starred answers |
| 28% | BASS | 4 | Word that refers to the lowest range of musical notes and ends with "ss" |
| 28% | IVORY | 5 | Material used to plate the skin of the Parthenon Athena and the statue of Zeus at Olympia |
| 28% | HEFTS | 5 | Tries to determine the weight of |
| 28% | ACLU | 4 | Nonprofit organization that strives to preserve the rights and liberties of Americans: Abbr. |
| 27% | CSS | 3 | Language used to format the layout of web pages (abbr) |
| 27% | ECLIPSEGLASSES | 14 | Equipment you'll need today to safely observe the sequence at the starts of 19-, 24- and 44-Across |
| 27% | STIRFRIES | 9 | Uses a wok, or, read as a direction, a hint to the ends of 17-, 28- and 44-Across |
| 27% | LITTLEHELPHERE | 14 | "I could use some assistance" ... and a hint to the contents of three squares in this puzzle |
| 27% | CATSCAN | 7 | Kind of X-ray used to study the human brain: 2 wds., abbr. |
| 27% | CROSSE | 6 | Equipment used to play the oldest organized sport in North America |
| 27% | FACERECOGNITION | 15 | Technology used by smartphones nowadays ... or a hint to the ends of 16-, 24-, 44- and 57-Across |
| 27% | SNOWJOBS | 8 | Persuasive efforts using insincere flattery ... and a hint to the last words of the answers to starred clues |
| 27% | INS | 3 | "You have to know the ___ and outs of this machine to use it properly." |
| 27% | FOILMETHOD | 10 | Technique used to multiply (x+4)(x-5), with the first words of 17-, 25-, 36-, and 44 Across making up its mnemonic |
| 27% | TRAP | 4 | Equipment used to catch a mouse, often seen in "Tom And Jerry" |
| 27% | DNA | 3 | It's often used to determine paternity on "Maury": Abbr. |
| 27% | HOME | 4 | The range, to the deer and the antelope |
| 27% | HOLLYBOUGH | 10 | Object used to deck the halls |
| 26% | TEST | 4 | Acid ___ (trial to determine the true worth of something or someone) |
| 26% | ARRAY | 5 | Used to index objects with the same data type |
| 26% | SETSBAIL | 8 | Determines the money needed to get out of jail |
| 26% | MEAT | 4 | ___ and potatoes, phrase used to refer to the most basic aspects of something |