Plate Motion Learning Goals - 8th

2. Geologists look for ___ in landforms and in geologic events in order to better understand Earth.
5. Alfred Wegener developed a theory of continental movement in part by analyzing the locations of ____ found across the globe.
6. Earth’s plates move on top of a soft, solid layer of rock called the ____
8. In Earth’s ancient past, the continents were connected into ____, including Gondwanaland.
9. __ can be hard solids or soft solids.
10. Earth’s outer layer is divided into sections called ____.
13. Earth’s plates travel at a rate _____ to be experienced by humans.
15. At ____ plate boundaries, mantle material fills the gap between the plates.
16. ___ provide evidence that the plates of Earth’s outer layer move.
17. At convergent plate boundaries, one plate moves underneath the other plate and ___ into the mantle.

1. Geologists learn about Earth’s history by studying rocks and _____ the within them.
3. Scientists use a range of techniques and tools to gather evidence about plate ____ on the ocean floor.
4. A ___ is used by scientists as an idea that may contribute important new knowledge for the evaluation of a scientific theory.
6. GPS technology is used to accurately measure the small distances that plates ____
7. Men and women from different social, cultural, and ethnic ____ work as scientists and engineers.
9. The ___ at which one plate moves can be calculated by dividing the distance the plate travels by the time it took to move that distance.
11. The plates of Earth’s outer layer ____
12. At ____ plate boundaries, one plate sinks into the mantle.
14. Earth’s ____ layer is made of hard, solid rock.