2. By adding pressure to the candy with the book, we were able to form a model of metamorphic rock igneous rock

**Answer:** **Metamorphic Rock** **Explanation:** Metamorphic rocks are formed when existing rocks undergo transformation due to high pressure and temperature conditions within the Earth's crust. In the context of your experiment: - **Adding Pressure with a Book:** By placing a book on the candy, you're simulating the high-pressure conditions that cause minerals within the original rock (or candy, in this model) to recrystallize and form a new structure without the rock melting. This process mirrors how metamorphic rocks are created in nature through the application of pressure. On the other hand: - **Igneous Rocks** are formed from the cooling and solidification of magma or lava. Since your experiment involves applying pressure rather than heat or melting, it aligns more closely with the formation of metamorphic rocks rather than igneous rocks. **Summary:** Applying pressure to the candy with a book effectively models the formation of metamorphic rocks.