Data structures: fill in the blanks: fill-in-the-blank worksheet for Grade 10, page 1 preview

Fill-in-the-blank worksheet · Coding

Data structures: fill in the blanks · Grade 10

Read 8 sentences about data structures and write the missing word in each, choosing from a word bank with a few extra words. Practices reading for meaning and topic vocabulary.

Grade 10 · ages 15 to 16
Hard
10 to 15 minutes
1 page
Free

The answer key is a separate page for grown-ups. Sign in to download it.

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The word bank and sentences

Directions: Read each sentence. Choose the best word from the word bank and write it on the line. Some words are not used.

Word bank: cross out each word as you use it
leaf · thousands · stack · tree · push · heap · queue hash · graphs · pointer
1 A printer · handles jobs in the order they arrive.
2 Choosing the right data structure can make a program · of times faster.
3 Maps and social networks are naturally stored as ____.
4 A · table can find a value in about the same time no matter how big it gets.
5 In a tree, a node with no children is called a ____.
6 Folders inside folders on a computer form a ____.
7 The undo button often uses a · of your recent changes.
8 A linked list node stores data and a · to the next node.

What your child practices

Your child practices reading for meaning and topic vocabulary.

Grades and ages: Grade 10, ages 15 to 16
Time: About 10 to 15 minutes
Subject: Coding
Level: Hard for Grade 10
Answer key: Yes, for grown-ups who sign in
Printing: 1 page, US Letter or A4, low-ink option
Updated: October 15, 2026

How to use it

Try the first question together so the format is clear. Then let your child work through the rest, showing their thinking on the page. It is one of the harder sheets for Grade 10, best once the basics of the topic are secure.

An answer key comes with it as a separate page that grown-ups download after signing in.

Tip for grown-ups: Read each sentence aloud with a hum for the blank, then try each word bank word in it.

Done on paper? A grown-up can record it on the child's page in PlayOwl; downloading alone doesn't count as finished.