Crossword puzzle · Coding
Data structures crossword · Grade 9
Solve a crossword of up to 13 words about data structures from short definition clues, with a word bank to help. Builds vocabulary, spelling and reading for meaning.
- Grade 9 · ages 14 to 15
- Easy
- 20 to 30 minutes
- 1 page
- Free
The answer key is a separate page for grown-ups. Sign in to download it.
The crossword clues
Directions: Read each clue and pick the answer from the word bank. Write one letter in each box.
- Word bank
- EDGE · GRAPH · HASH TABLE · HEAP · LEAF · LINKED LIST · NODE · POINTER · PUSH
- QUEUE · ROOT · STACK · TREE
- Across
- 4 A node with no children (4)
- 6 Hierarchy of nodes with one root and many branches (4)
- 7 A value that holds the memory address of something else (7)
- 8 Add an item to the top of a pile (4)
- 10 Chain of items, each pointing to the next (6, 4)
- 13 First in, first out, like a line at a shop (5)
- Down
- 1 The single starting point at the top of a hierarchy (4)
- 2 Stores key-value pairs for near-instant lookup (4, 5)
- 3 Points joined by connections, like a map of roads (5)
- 5 Priority structure where the top item is always the largest or smallest (4)
- 9 Last in, first out, like a pile of plates (5)
- 11 One item in a linked structure (4)
- 12 A connection between two vertices (4)
What your child practices
Your child builds vocabulary, spelling and reading for meaning.
- Grades and ages
- Grade 9, ages 14 to 15
- Time
- About 20 to 30 minutes
- Subject
- Coding
- Level
- Easy for Grade 9
- Answer key
- Yes, for grown-ups who sign in
- Printing
- 1 page, US Letter or A4, low-ink option
- Updated
How to use it
Read the first across clue together so the format is clear. Use a pencil so mistakes rub out easily, and check every answer at the end. It is one of the easier sheets for Grade 9, good as a warm-up or a first look at the topic.
An answer key comes with it as a separate page that grown-ups download after signing in.
Tip for grown-ups: Use the letter count after each clue and any crossing letters when a clue gets stuck.
Done on paper? A grown-up can record it on the child's page in PlayOwl; downloading alone doesn't count as finished.
Coding · Grade 9
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