Word Lab Experiment Answer Key

This worksheet is designed to help students in Grades 4 and 5 strengthen grammar accuracy, modifier recognition, sentence analysis, and contextual reasoning through a focused investigation of -ly words. In a “Word Lab” format, students analyze sentences containing bolded words ending in -ly and determine whether each word functions as an adjective or an adverb, using context clues to guide their decisions.

Skills Reinforced

• Adjectives vs. Adverbs (Grades 4-5): Distinguish between descriptive words that modify nouns and those that modify verbs or adjectives.
• Grammar & Word Usage: Understand that not all -ly words function the same way in sentences.
• Sentence Context Analysis: Use meaning and structure to determine a word’s grammatical role.
• Editing & Proofreading Readiness: Build awareness needed for accurate revision and advanced writing.

Instructional Benefits

• Teacher-Created Resource: Designed by educators to align with upper-elementary grammar standards.
• Clear Classification Task: Simple A/B marking keeps the focus on reasoning rather than formatting.
• Critical Thinking Emphasis: Encourages close reading and analysis of sentence meaning.
• Flexible Use: Ideal for grammar lessons, independent practice, review, assessment, or intervention.

This printable grammar worksheet helps students move beyond surface-level rules and develop a deeper understanding of how modifiers function in real sentences. By analyzing -ly words in context, learners strengthen grammatical precision, sentence awareness, and editing skills. It’s a low-prep, classroom- and homeschool-friendly resource that supports confident, accurate language use through thoughtful grammar practice.

This worksheet is part of our Adjective and Adverb Confusion collection.