Problem Explanation:
The worksheet asks for the composition of three types of rocks:
Sedimentary rock,
Metamorphic rock, and
Igneous rock. Each question is accompanied by an image that visually represents the rock type.
Solution:
#### 1.
What is Sedimentary rock made up of?
-
Image Description: The image shows a layered rock with visible fossils (e.g., bones, shells). This is characteristic of sedimentary rocks.
-
Explanation: Sedimentary rocks are formed from the accumulation and cementation of sediments, which can include particles of other rocks, minerals, organic matter, and fossils. Over time, these sediments are compacted and cemented together under pressure and water.
-
Answer: Sedimentary rock is made up of layers of sediment, including particles of other rocks, minerals, organic matter, and fossils.
#### 2.
What is Metamorphic rock made up of?
-
Image Description: The image shows a rock with a rough, uneven surface. This is characteristic of metamorphic rocks.
-
Explanation: Metamorphic rocks are formed when existing rocks are subjected to high pressure, high temperature, or chemical changes deep within the Earth. These conditions cause the original minerals in the rock to change into new minerals without melting the rock entirely.
-
Answer: Metamorphic rock is made up of minerals that have been altered by heat, pressure, or chemical processes, often resulting in recrystallization and the formation of new mineral structures.
#### 3.
What is Igneous rock made up of?
-
Image Description: The image shows a dark, solid rock. This is characteristic of igneous rocks.
-
Explanation: Igneous rocks are formed from the cooling and solidification of magma (molten rock beneath the Earth's surface) or lava (molten rock on the Earth's surface). They are composed of crystals that form as the molten material cools and solidifies.
-
Answer: Igneous rock is made up of crystalline minerals that form from the cooling and solidification of magma or lava.
Final Answers:
1.
Sedimentary rock: Layers of sediment, including particles of other rocks, minerals, organic matter, and fossils.
2.
Metamorphic rock: Minerals altered by heat, pressure, or chemical processes, often resulting in recrystallization.
3.
Igneous rock: Crystalline minerals formed from the cooling and solidification of magma or lava.
Boxed Final Answer:
\[
\boxed{
\begin{array}{l}
\text{1. Sedimentary rock: Layers of sediment, including particles of other rocks, minerals, organic matter, and fossils.} \\
\text{2. Metamorphic rock: Minerals altered by heat, pressure, or chemical processes, often resulting in recrystallization.} \\
\text{3. Igneous rock: Crystalline minerals formed from the cooling and solidification of magma or lava.}
\end{array}
}
\]
Parent Tip: Review the logic above to help your child master the concept of three types of rocks worksheet.
