- 1. Have you ever found clues that a landscape was once very different than it is today? For example, have you found seashells in soil far from the ocean?
- Why do the ancient shorelines of Lake Bonneville stand out from the surrounding landscape?
- How big was Lake Bonneville, and where was it?
- Describe how the shorelines of the lake left impressions in the mountainsides.
- About how long ago did Lake Bonneville exist? What was different about the region then, other than the lake?
- How did changes in climate and rainfall over thousands of years affect the lake’s shorelines?
- Briefly explain global warming. How can learning about the history of Lake Bonneville help scientists predict future climate conditions for the planet?
- How did boulders once covered by Lake Bonneville come to be covered in a light-brown crust?
- What are the “bathtub rings” left behind by Lake Bonneville?
- Where did the mineral coatings form in the lake, and on what kinds of things did they grow?
- As Lake Bonneville dried up, what kind of ecosystem formed on the lakebed?
- How can the remains of once-living things help scientists date a lake or a rock?
- Some scientists predict that the American West will become drier in the future because of global warming. How will a drier West affect both people who live there and people who live elsewhere in the country?
- The greenhouse gas carbon dioxide is released into the air when people burn fossil fuels like oil, gas and coal. List three ways you could reduce your carbon footprint — how much carbon you contribute to the atmosphere.