The force that causes protons and neutrons to be attracted to each other.
Most nuclei that contain more than 83 protons are____.
Plural form of nucleus.
The breaking down of atomic nuclei by releasing particles or electromagnetic radiation.
Atoms with different numbers of neutrons.
Electromagnetic waves with extremely short wavelengths.
Something that uses energy from controlled nuclear reactions to generate electricity.
Electrically neutral particle inside the nucleus of an atom.
The minimum amount of fissile material needed to maintain a nuclear chain reaction.
Particle with a negative charge in the nucleus of an atom.
Time it takes for half of atoms in a substance to decay.
An important material used for nuclear energy.
The self-sustaining fission reaction spread by neutrons that occurs in nuclear reactions.
Any radioactive material that results when radioactive materials are used.
A particle with the mass of an electron but a positive charge.
Down
Substance containing a radioisotope that is used to measure the speed of chemical processes.
______ will stop most alpha particles.
The splitting of an atomic nucleus into two smaller fragments.
The joining of two lightweight atomic nuclei into a single heavier nucleus.
A charged particle.
A particle that consists of two protons and two neutrons.
Instruments used for ionizing radiation.
The changing of one element into another by radioactive decay.
Vessel filled with a super-heated transparent liquid used to detect electricity.
Particle detector used for detecting electricity.
Gamma Rays can be stopped by _____.
An example of fusion.
It takes a sheet of _____ to absorb most beta particles.
Particle in the nucleus with a positive electric charge.
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All your puzzles are accessible from your 'My Puzzles' page, which you can access using the navigation bar at the top when you are logged in.
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There is a 'Make Printable' button on the top left of your puzzle that will let you sign up for a plan or purchase a single puzzle.
Once paid, that button will turn into a 'Preview + Publish' button that will put your puzzle in a format that can be printed or solved online.
Once you publish your puzzle, you can click the print icon or use your browser’s print function.
It looks weird when printed.
First make sure you’ve published your puzzle. See the 'How do I print?' section above for more information.
99% of other printing issues have to do with printer settings. Instead of trying to fiddle with printer settings, which can be time-consuming and frustrating, there are a couple workarounds you can try.
You can try printing from a different browser, since different browsers have different default print settings. Alternately, you can try saving as a PDF (next to the print icon) and print that.
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We invested in building a number of premium features that free sites are unable to offer: the ability to automatically or manually add words to your puzzle, save-as-you-go puzzle editing, the ability to access your puzzles from any computer, an uncluttered and ad-free interface, the ability for friends and colleagues to solve your puzzles online, and quick responsiveness to reported issues.
My Crossword Maker is the lowest-price service we've found that provides these features, and is designed for people who are not satisfied with what free sites are able to provide.
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We’re sorry you thought My Crossword Maker was free, that must have been frustrating.
We’re constantly trying to provide a clear and straightforward user experience, and we’re not trying to hide the price: on the page where you make your puzzle, the price is listed in the overview in the top left (before you log in), below the 'Make Printable' button (after you log in), in the FAQ below the grid, and also in the tour.
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For security a human can’t see or reset your password, so read the below information carefully.
If you haven’t gotten the password reset email, check your spam folder, be sure you’re checking the email account that the email was sent to, and be aware that some school email systems block emails from non-school email addresses.
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Not all my words are in my puzzle.
When you hit the 'Arrange' button, our algorithm will try to arrange all your words on the grid, and will move words around to try to fit the most words.
This will get all the words on the grid about 90% of the time, depending on the word list. For the other 10%, you will get an alert explaining that the words that did not fit were added to the scratchpad.
It prints on two pages.
Big puzzles won’t always print on one page — the clues and grid are the smallest we could make them while keeping them readable for everyone.
That said, different browsers print in slightly different ways, so you could try using 'print preview' using a different browser (or try the PDF button) to see if you like how that looks better.
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We generally respond to all reported issues in about a day. If it’s been a few days and you haven’t heard back from us, it’s possible we sent an email that didn’t reach you.
Check your spam folder, and be aware that some school email systems block emails from non-school email addresses. Try providing a different email address if you think our emails to you are being blocked.
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