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| Plant and Animal Relationships |
| Chapter 1: Why aren’t new chalta trees growing in the Bengal Tiger Reserve? |
| Chapter 2: Why aren’t the chalta seeds getting what they need to grow? |
| Chapter 3: Why aren’t the chalta seeds getting to places where they can grow? |
| Chapter 4: How are other seeds in the reserve able to get to places where they can grow? |
| Properties of Materials |
| Chapter 1: How can you make a sticky glue? |
| Chapter 2: Can heating an ingredient make a better glue? |
| Chapter 3: What ingredients can be used to make a glue that is sticky and strong? |
| Chapter 4: What is the glue recipe that best meets our design goals? |
| Changing Landforms |
| Chapter 1: How did the edge of the cliff get to be so close to the flagpole? |
| Chapter 2: How did the recreation center’s cliff change? |
| Chapter 3: How did the recreation center’s cliff erode without the director noticing? |
| Chapter 4: Could the recreation center’s cliff erode quickly? |