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Jokes & Puns from Math & Chem

CIRCLED clues denote chemical ELEMENTS, so use Periodic Table with 118 official elements.  See how far you can go BEFORE using calculator & Google.
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Across
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According to solubility guidelines, ____bears should dissolve in water
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Empty birdcage
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Eons are made up of ____
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Cesium & iodine love to watch this TV show together
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Curiously, her 2 Nobel Prizes killed her
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Migrating numerals
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Radioactive isotopes help determine fossil's ____
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Metal in transition again & again
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After losing an electron, the atom says, "I have to keep an ____ them."
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A copper-tellurium alloy & you are both ____
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Half of one quart
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HIJKLMNO
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Math teacher's snake
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If you can't ____ ... 48 Across
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Half the diameter
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Subtract sec x from csc x
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Slightly cold
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2(ln 3.2+ln 5)log(10^9.5)/ln 2
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Negative answer
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Fifty-one
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Southeast
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When changing bases, mathematicians get confused because Dec 25 = ____ 31
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In thermodynamics, heat energy ____ is measured in ____ units
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Incarcerated clown
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Liberal arts degree
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& you can't ___ ... 66 Across
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Don't trust atoms. They make ____ everything.
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7499 (my PIN ??)
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All the good chemistry jokes ____
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Enlightened state
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Tool for spin doctors
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Host
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Nurse
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Having two
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Two hundred eighty-eight boogers is two ____
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World's most visited country
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1 cm/s^2
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... then you might as well ____
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Seventh note of scale: Do, Re, Mi, ...
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Adorable angle
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Five cents
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She threw NaCl at me. I said, "That's a ____."
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Quadrilateral involved in an accident
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He was Married with Children
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Roman holds up two fingers & says, "Five ____, please."
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Person who likes tractors
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Teapot of boiling water on Mt. Everest
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This trig fan put "sin" in "single"
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Man after day at beach
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Energy expended when electron says, "That's revolting."
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Name of witch doctor's business
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Against alimony
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Stock market ____ & downs
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Compound of rhenium & iodine has anger issues
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Copyright 2019 Wesley Petty
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All Rights Reserved
Down
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Tell waiter "I'll have H2O too" and you might be served ___oxide
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Cinnabar cried when quicksilver called her a common ____
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Pelican state
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Used in many similes
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Jack-o-lantern circumference divided by its diameter = pumpkin ____
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Why divide sin by tan? Just ____
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Letter "L" twice
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Anagram of nitrogen monoxide
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Peach state
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Fifth term of sequence with common ratio = -2 & first term = 7.375
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Planet after Uranus
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Did you hear the one about cobalt, radon & yttrium? It's ____
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6^2 + 84 / 3 -2^3 - 3 x (8-6)
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Leap day
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Empty
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Girl's best friend
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Replace benzene's carbon with iron to make ____ wheel
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Egyptian sun god
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Pair with jelly to make great sandwich
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Number of terms in sequence if sum is 2408, first term is -7 & common difference is 3
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Indefinite integral of d(cabin) / cabin
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King Arthur's favorite knight at the Round Table
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____ , 49, 36, 18, 8
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His dentures in a water glass make an eight ____ solution
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Larry & Curly's buddy
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Official name of metric system (abbr)
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Letters missing from element NAMES
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Nice try during quiz to name CH2O (formaldehyde)
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One-hundredth of a meter
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Letters missing from element SYMBOLS
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Third person singular present tense of verb to be
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BaNa2 is a good source of K
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One hundred grams
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Potential 51st U.S. state
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Cheaper than day rate
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Lone Ranger's horse
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6 sec x csc x if x = 15 degrees
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Earned first Nobel Prize in Physics for discovering X-rays
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Columbia is capital city
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Uppercase sigma
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Geometry often found at Starbucks
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For all practical purposes, the most reactive metal
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Comfort on a hot day
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Don't drink and ____
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Propane (sometimes mixed with butane)
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What rat & cat have in common
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5! - 4! +3! +2! - 1! / 0!
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His ____ is square root of -100 (a perfect 10 & purely imaginary)
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Four hundred
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Half of one whole
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You have to be ____ to be number one
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Santa has a sore throat
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Thirteenth prime number
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Continent with 10% of world population
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Sum of divisors of 50
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Volunteer state