-st Words Answer Key

Build vocabulary and word analysis skills with this -st words prefixes and suffixes worksheet. Students create new words by adding common prefixes and suffixes to base words ending in -st, helping them understand how word parts change meaning and grammatical function.

Key Learning Objectives
• Skill Focus: Forming new words by adding prefixes and suffixes to -st base words
• Critical Thinking Benefit: Encourages analysis of how affixes affect meaning and word use
• Curriculum Tie-In: Supports morphology, vocabulary development, phonics, and spelling instruction
• Application Type: Word-building practice that strengthens structural analysis and pattern recognition

Teacher & Parent Features
• Reinforces understanding of prefixes and suffixes such as re-, un-, -er, and -ing
• Builds morphological awareness for advanced reading and writing
• Strengthens spelling accuracy through meaningful word construction
• Expands academic and everyday vocabulary
• Encourages flexible thinking about word formation
• Ideal for literacy centers, small groups, independent practice, or enrichment

This printable -st word formation worksheet helps students deepen vocabulary knowledge and spelling accuracy by exploring how prefixes and suffixes transform base words, supporting strong foundations in word study, reading, and writing.

This worksheet is part of our -st Blends Worksheets collection.