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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?|
|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?|