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Grades 9 and 10 - Geography - High School - Evidence for Climate Change
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Avg score: 65% Most missed: “How much have sea levels risen in the past 100 years?”
How can you measure sea level change? Imagine you are standing at the beach with a ruler. The waves come in and out changing the sea level there over seconds. Each day the tidal cycle changes the sea level and that changes during the lunar cycle. Even If you can prove that the sea level has changed - is it really the sea level changing, or is the land rising or falling? New technologies, including satellites, are allowing scientists to measure the small changes that show that the world's climate is altering faster than ever before. The main areas of evidence that you need to be aware of... Show more
Grades 9 and 10 - Geography - High School - Evidence for Climate Change
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10 Questions

1. The Earth's oceans are becoming more acidic. How have human actions caused this?
2. What is the evidence that anthropogenic (man-made) causes are behind the rise in CO2 levels?
3. What part of the planet absorbs most of the temperature increase?
4. Extreme events are an obvious source of evidence for climate change. In terms of warmest summers on record what has been the trend in the twenty-first century?
5. How much have sea levels risen in the past 100 years?
6. Why can't NASA's Moderate Resolution Imaging Spectroradiometer collect data on the snow coverage at the poles during their respective winters?
7. How might scientists monitor snow coverage?
8. What is the evidence for climate change from glaciers and ice sheets?
9. The extent and thickness of the Artic sea ice is reducing each year. But what other technique can be used on the ice to gather evidence for climate change?
10. Solar output is the amount of energy given off by the Sun. From 2007-2009 the solar output declined so much that this period is known as a solar minimum. What happened to the Earth's surface temperatures during this time?