ACARA Digital Technologies Years 9–10 Definitions Worksheet: Content, Structure and Presentation and Data Compression (Modules 155–225)
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Key terms
Write what each term means, in your own words.
1
Inspect
2
p { color: blue; }
3
color: navy;
4
text-align
5
<link rel="stylesheet" href="style.css">
6
debugging
7
separation of content and presentation
8
decompression
9
bitrate
Answer Key
ACARA Digital Technologies Years 9–10 · Modules 155–225 · Student wording will vary for definitions
1Inspect — Browser tool opened by right-clicking an element. It shows that element's HTML and CSS so you can explore a real site's layers. View page source shows the whole HTML.
2p { color: blue; } — A CSS rule: a selector (p) picks elements, then { } hold declarations. Each declaration is property, colon, value, semicolon, so all paragraphs get blue text.
3color: navy; — The color property sets an element's text colour using a name or hex value. background-color sets the colour behind the text. Choose pairs with enough contrast to read.
4text-align — A CSS property that sets how lines of text line up inside an element: left, center or right. Example: text-align: center; centres a heading's text. It styles the text, not the box.
5<link rel="stylesheet" href="style.css"> — Adds an external CSS file. Inline uses style=, internal uses <style>, but only this external link lets many pages share one stylesheet and fully separates presentation from structure.
6debugging — Finding and fixing small slips in code, such as a missing closing tag, quote, semicolon or brace, or a class name that does not match. Check your code against the rules to spot each one.
7separation of content and presentation — Keeping HTML content apart from CSS style means one CSS rule can restyle every page without touching the content, because the look is stored in one place.
8decompression — Reversing compression to turn a compressed file back into usable data. Only lossless decompression restores the exact original; lossy data that was removed is gone for good.
9bitrate — The number of bits used for each second of audio or video, measured in kbps. A lower bitrate gives a smaller file but lower quality, e.g. 128 kbps is smaller than 320 kbps.