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Changes to Earth
| Question | Answer |
|---|---|
| The breaking down of rocks is called: | Weathering |
| What are sediments? | Tiny pieces of broken down rocks |
| When sediments are moved from one place to another it is called: | Erosion |
| When sediments are dropped in a new location and stack on top of each other in layers, it is called: | depoSITion |
| A canyon is formed by... | Moving water (a river) |
| What is a glacier? | A massive piece of ice that moves very slowly across Earth's surface |
| What landform is formed by a glacier? | U-shaped Valley |
| How is a sand dune formed? | Wind picks up sand sediments and drops or deposits them in a new location where they build up over time. |
| What shape is a delta formed in? | A triangle |
| How is a delta formed? | Where the mouth of a river meets the ocean and DEPOSITS sediments. |
| How can a delta grow larger? | A river must continue to drop sediments off where the mouth of a river meets a delta. |
| Describe weathering: | When large rocks BREAK down into smaller pieces called sediments. |
| Explain erosion: | When wind, water or ice MOVES the sediments to a new location. |
| Describe deposition: | When sediments are dropped or laid down in a new place and begin to stack on top of each other in layers. |
| What does rapid mean? | Very quickly or fast |
| What are three major causes of a landslide? | Heavy rains Volcanic activity Earthquakes |
| What rapid change takes place when Earth's plates rub together? | Earthquake |
| Is a volcano a rapid change or a slow change? | Rapid |
| Water carving out the sides of a canyon wall is an example of weathering, erosion or deposition? | Weathering |
| A river dropping sediments in a new location is an example of weathering, erosion or deposition? | Deposition |
| Wind transporting sand sediments in the air is an example of weathering, erosion or deposition? | Erosion |