| A | B |
|---|
| descriptive | How many insects are there in a given area? |
| descriptive | How frequently does it rain in the month of August? |
| descriptive | What is the gestation period for a manatee? |
| comparative | What is the difference in temperature at locations A and B at 12:00 noon? |
| comparative | What is the difference in the pH of the water in a clean aquarium versus a dirty aquarium? |
| comparative | What are the similarities and differences among prokaryotes and eukaryotes? |
| experimental | How does running affect heart rate? |
| experimental | What is the effect of sugar on yeast? |
| experimental | How does temperature affect the growth of mold? |
