Quiz and Cloze Notes

The Student Guide and Introduction to Geothermal – Starter Pack contain the quiz and cloze notes.
Quiz Answer Key: Q1:A Q2:C Q3:B Q4:D
Cloze Notes Answer Key: Geothermal; heat; buildings; electricity; flexible; surface; expensive

Data Set

The Student Guide contains the Introduction to Geothermal – Data Set.
Answer Key: Question 1: Globally, geothermal energy capacity has increased significantly between 2000 and 2024, showing a strong upward trend in the use of geothermal energy worldwide. However, this trend is not the same across all economic regions. For example, low-income countries have shown no growth at all in this time period.
Question 2: Increase = 15,411.61 MW – 8,272.70 MW = 7,138.91 MW
Percent increase = (7,138.91 / 15,411.61) x 100 = 46.32% percent increase
Question 3: Upper-middle-income countries have contributed the most to the increase. Between 2000 and 2024, their capacity increased by 4,057.5 MW. This is the largest increase among all income categories.
Question 4: Answers will vary. (Example: Low-income countries may face financial, technical and infrastructure barriers that make it difficult to develop geothermal energy projects.)
Question 5: Answers will vary. 

Heat Transfer Hands-On

The Student Guide contains the Heat Transfer Lab – Student questions.
Reflection Question Sample Responses
Question 1: The container with the chilled soil showed the bigger temperature change. This is because the cold soil absorbed more heat from the warm water, causing the temperature strip to cool down faster. The soil at room temperature didn’t need to absorb as much heat, so the strip didn’t change as much.
Question 2: This shows that underground soil can absorb heat or stay cooler than the air above. It acts like a sponge for thermal energy. Because soil underground stays at a steady temperature, it can either pull heat away when it’s hot, or give off heat when it’s cold – like a natural heater or cooler.
Question 3: If we use underground pipes filled with water, they can carry heat to the buildings in winter, and take heat away in the summer. This reduces the need for air conditioners or heaters, which use electricity.
Question 4: Answers will vary.