Description

The smallest quantity of an element that can take part in a chemical reaction, consisting of a positively charged nucleus made up of protons and neutrons, surrounded by negatively charged electrons
The positively charged, dense region at the centre of an atom, made up of protons and neutrons, orbited by electrons
A subatomic particle with a relative mass of 1 and relative charge of +1
A subatomic particle with a relative mass of 1 and no charge
A subatomic particle with the relative mass that is very small and a relative charge of -1
A substance made of only 1 atom
Atoms of the same element, but with different numbers of neutrons in the nucleus
Lacking stability; having a very short lifetime; radioactive
The rate at which a radioactive emits radiation, measure in becquerels
Containing a substance that gives out radiation
A type of nuclear radiation that is strongly ionising, in the form of a particle consisting of two protons and two neutrons (a helium nucleus)
A type of nuclear radiation that is moderately ionising, consists of a high-speed electron, which is ejected from a nucleus as a neutron turns into a proton
High frequency, short wavelength electromagnetic waves; a type of nuclear radiation, emitted from a nucleus
The unwanted presence of materials containing radioactive atoms on other materials
To expose an object to nuclear radiation (the object does not become radioactive)
The average time it takes for half the nuclei in a sample of radioactive isotope to decay; the time it takes for the count rate/activity of the radioactive isotope to fall by 50% (halve)
A radioactive isotope that is put into a system so that its movement can be tracked, helping to reveal blockages/holes that should not be there; used in medicine and industry
The splitting of an atomic nucleus into parts, either spontaneously or as the result of an impact of a particle usually with an associated released of energy
A reaction in which two nuclei combine to form a nucleus with the release of energy

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Chapter 4 Quiz

Matching Quiz

P4 Radioactivity

Crossword

Atoms

Crossword

Frequently Asked Questions

What is a crossword?

Crossword puzzles have been published in newspapers and other publications since 1873. They consist of a grid of squares where the player aims to write words both horizontally and vertically.

Next to the crossword will be a series of questions or clues, which relate to the various rows or lines of boxes in the crossword. The player reads the question or clue, and tries to find a word that answers the question in the same amount of letters as there are boxes in the related crossword row or line.

Some of the words will share letters, so will need to match up with each other. The words can vary in length and complexity, as can the clues.

Who is a crossword suitable for?

The fantastic thing about crosswords is, they are completely flexible for whatever age or reading level you need. You can use many words to create a complex crossword for adults, or just a couple of words for younger children.

Crosswords can use any word you like, big or small, so there are literally countless combinations that you can create for templates. It is easy to customise the template to the age or learning level of your students.

How do I create a crossword template?

For the easiest crossword templates, WordMint is the way to go!

Pre-made templates

For a quick and easy pre-made template, simply search through WordMint’s existing 500,000+ templates. With so many to choose from, you’re bound to find the right one for you!

Create your own from scratch

  • Log in to your account (it’s free to join!)
  • Head to ‘My Puzzles’
  • Click ‘Create New Puzzle’ and select ‘Crossword’
  • Select your layout, enter your title and your chosen clues and answers
  • That’s it! The template builder will create your crossword template for you and you can save it to your account, export as a word document or pdf and print!

How do I choose the clues for my crossword?

Once you’ve picked a theme, choose clues that match your students current difficulty level. For younger children, this may be as simple as a question of “What color is the sky?” with an answer of “blue”.

Are crosswords good for students?

Crosswords are a great exercise for students' problem solving and cognitive abilities. Not only do they need to solve a clue and think of the correct answer, but they also have to consider all of the other words in the crossword to make sure the words fit together.

Crosswords are great for building and using vocabulary.

If this is your first time using a crossword with your students, you could create a crossword FAQ template for them to give them the basic instructions.

Can I print my crossword template?

All of our templates can be exported into Microsoft Word to easily print, or you can save your work as a PDF to print for the entire class. Your puzzles get saved into your account for easy access and printing in the future, so you don’t need to worry about saving them at work or at home!

Can I create crosswords in other languages?

Crosswords are a fantastic resource for students learning a foreign language as they test their reading, comprehension and writing all at the same time. When learning a new language, this type of test using multiple different skills is great to solidify students' learning.

We have full support for crossword templates in languages such as Spanish, French and Japanese with diacritics including over 100,000 images, so you can create an entire crossword in your target language including all of the titles, and clues.