Metamorphic rocks, heat, pressure, and fluids are the focus of this Grade 4 Science resource, giving students a structured way to explore how existing rocks change under different geological conditions. Designed for an Ontario science context, the worksheet connects metamorphic processes with the textures and histories of rocks.

From existing rock to metamorphic rock

Students examine how heat, pressure, and chemically active fluids can transform a preexisting rock into metamorphic rock. They explore the difference between contact metamorphism and regional metamorphism, comparing where each occurs and the conditions that cause it.

The resource also develops key ideas about recrystallization, foliation, and metamorphic grade. Students connect recrystallization and foliation to textures found in metamorphic rocks, then use metamorphic grade to relate a rock's history to the intensity of the conditions it experienced and how it may later become exposed.

What students encounter

The worksheet combines multiple-choice questions, true-or-false statements, short-answer responses, a reading passage, matching, a cloze passage, an essay, and a “Did You Know?” feature. These tasks ask students to identify geological processes, compare metamorphic settings, describe changes in rock texture, and explain relationships between conditions and rock history.

Included for teaching and review

• Student worksheet focused on metamorphic rocks and the roles of heat, pressure, and fluids
• Student Notes & Lesson Summary supplement for reinforcing the key concepts covered in the lesson
• Separate Teacher Guide PDF with learning objectives, teaching tips, discussion questions, and common mistakes

Ways to use it in a Grade 4 classroom

Use this metamorphic rocks worksheet during a rocks and minerals unit to introduce or reinforce how geological conditions change rocks. It can also serve as independent classwork following instruction, a review activity, or a structured way to check students' understanding of metamorphic processes and terminology.

The combination of student notes and a dedicated Teacher Guide makes the resource useful beyond the worksheet itself. Teachers have discussion prompts and teaching guidance available alongside student practice, while the varied response formats provide opportunities for students to recall concepts, compare processes, and explain geological relationships in their own words.