What Is the Structure of Earth? Science Printable (6th-12th Grade ... - Free Printable

The image you uploaded appears to be a worksheet titled "What is the structure of Earth?" It includes multiple-choice questions and a short-answer section. Below, I will explain how to approach and solve the problems presented in the worksheet.

---

Worksheet Analysis

#### Multiple-Choice Questions
1. "Which layer is the thickest layer of Earth?"
- Correct Answer: D. Mantle
- Explanation: The mantle is the thickest layer of Earth, making up about 84% of Earth's volume. It lies between the crust (outermost layer) and the core (innermost layer).

2. "How many layers does the Earth have?"
- Correct Answer: C. Four
- Explanation: Earth is generally divided into four main layers:
1. Crust (outermost layer)
2. Mantle
3. Outer Core
4. Inner Core

3. "What is the innermost layer of Earth called?"
- Correct Answer: B. Inner Core
- Explanation: The inner core is the deepest layer of Earth, located at the center. It is solid due to immense pressure, despite being extremely hot.

4. "What is the outermost layer of Earth called?"
- Correct Answer: A. Crust
- Explanation: The crust is the thin, outermost layer of Earth. It varies in thickness but is generally much thinner than the other layers.

5. "What layer is liquid?"
- Correct Answer: C. Outer Core
- Explanation: The outer core is primarily composed of liquid iron and nickel. This layer is responsible for generating Earth's magnetic field.

6. "What layer is solid?"
- Correct Answer: D. Inner Core
- Explanation: The inner core is solid due to the extreme pressure at the center of Earth, even though it is very hot.

---

#### Short-Answer Section
1. "If the diameter of the Earth is 12,742 km, what is the radius?"
- Formula: Radius = Diameter / 2
- Calculation:
\[
\text{Radius} = \frac{12,742 \, \text{km}}{2} = 6,371 \, \text{km}
\]
- Answer: 6,371 km

2. "Use the table below to answer the following questions."
- The table is not visible in the provided image, so I cannot directly answer these questions. However, if the table provides data related to Earth's layers (e.g., thickness, composition), you would use that information to answer the questions.

3. "What country or continent has the highest elevation?"
- Answer: Asia (specifically, Mount Everest, which is located on the border of Nepal and Tibet).
- Explanation: Mount Everest is the highest point on Earth above sea level, with an elevation of approximately 8,848 meters (29,029 feet).

4. "What country or continent has the lowest elevation?"
- Answer: Asia (specifically, the Dead Sea).
- Explanation: The Dead Sea, located in Israel, Jordan, and Palestine, is the lowest point on Earth below sea level, with an elevation of approximately -430 meters (-1,410 feet).

5. "What country or continent has the largest land area?"
- Answer: Asia.
- Explanation: Asia is the largest continent by both land area and population.

6. "What country or continent has the smallest land area?"
- Answer: Australia.
- Explanation: Australia is the smallest continent by land area.

---

Final Answers

1. Multiple-Choice Answers:
- Q1: D. Mantle
- Q2: C. Four
- Q3: B. Inner Core
- Q4: A. Crust
- Q5: C. Outer Core
- Q6: D. Inner Core

2. Short-Answer Answers:
- Q1: 6,371 km
- Q2: (Depends on the table provided; cannot answer without the table.)
- Q3: Asia (Mount Everest)
- Q4: Asia (Dead Sea)
- Q5: Asia
- Q6: Australia

---

Boxed Final Answer

\[
\boxed{
\begin{aligned}
&\text{Multiple-Choice:} \\
&\text{Q1: D, Q2: C, Q3: B, Q4: A, Q5: C, Q6: D} \\
&\text{Short-Answer:} \\
&\text{Q1: 6,371 km} \\
&\text{Q3: Asia (Mount Everest)} \\
&\text{Q4: Asia (Dead Sea)} \\
&\text{Q5: Asia} \\
&\text{Q6: Australia}
\end{aligned}
}
\]