ACARA Digital Technologies Years 7–8 Word Scramble: Programming with Control Structures and Functions (JavaScript) (Modules 562–580)
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Word scramble
Unscramble the letters and write each key term on the line.
1
EEUCNQSE
Statements run one after another from top to bottom, so changing the order of lines can change the result. A variable must be set before it is used.
2
SNLGOCL.IOH("EO");
JavaScript is case-sensitive, so console.log must be typed exactly. Every opening quote, bracket or brace needs a matching closing one, like the quotes and ( ) here.
3
OECRS = CORSE + 1;
Reassigns an existing let variable. The right side is worked out first using the old value, then the new value replaces it. Don't write let again.
4
STNCO
Declares a variable whose value is set once and cannot be reassigned. Use it for fixed values like a maximum score. Changing it later causes a TypeError.
5
ERUBNM
A value written without quotes, whole (7), decimal (3.5) or negative (-2), that you can calculate with. 5 is a ______ but '5' in quotes is a string, which is text.
6
EOLANOB
A data type with only two values, true or false, written in lowercase with no quotes. Comparisons like 5 > 3 give a ______, and true is not the same as the string "true".
7
LTATO += IRCPE
A shorthand update. Operators like +=, -=, ++ and -- change a variable using its own value, so ______ means total = total + price. count++ adds 1 and count-- takes away 1.
8
TOEQOP("ITSNMUPR")
Shows a message box, waits for the user to type, then returns what they typed as a string. Store it in a variable. Cancel returns null.
9
ONGOSLL.OCE, TRPMPO, TLE
Blocks have typed JavaScript equivalents: a say block becomes console.log, an ask block becomes prompt, and a set variable block becomes let (or an assignment with =).
Answer Key
ACARA Digital Technologies Years 7–8 · Modules 562–580
1EEUCNQSE → sequence — Statements run one after another from top to bottom, so changing the order of lines can change the result. A variable must be set before it is used.
2SNLGOCL.IOH("EO"); → console.log("Hi"); — JavaScript is case-sensitive, so console.log must be typed exactly. Every opening quote, bracket or brace needs a matching closing one, like the quotes and ( ) here.
3OECRS = CORSE + 1; → score = score + 1; — Reassigns an existing let variable. The right side is worked out first using the old value, then the new value replaces it. Don't write let again.
4STNCO → const — Declares a variable whose value is set once and cannot be reassigned. Use it for fixed values like a maximum score. Changing it later causes a TypeError.
5ERUBNM → number — A value written without quotes, whole (7), decimal (3.5) or negative (-2), that you can calculate with. 5 is a number but '5' in quotes is a string, which is text.
6EOLANOB → boolean — A data type with only two values, true or false, written in lowercase with no quotes. Comparisons like 5 > 3 give a boolean, and true is not the same as the string "true".
7LTATO += IRCPE → total += price — A shorthand update. Operators like +=, -=, ++ and -- change a variable using its own value, so total += price means total = total + price. count++ adds 1 and count-- takes away 1.
8TOEQOP("ITSNMUPR") → prompt("question") — Shows a message box, waits for the user to type, then returns what they typed as a string. Store it in a variable. Cancel returns null.
9ONGOSLL.OCE, TRPMPO, TLE → console.log, prompt, let — Blocks have typed JavaScript equivalents: a say block becomes console.log, an ask block becomes prompt, and a set variable block becomes let (or an assignment with =).