Question

becky wants to grow sunflowers in her backyard garden. she notices that some sunflowers grow much taller than others. she is curious about what factors affect how sunflowers grow. she has the following supplies available:

• seeds from one type of sunflower
• soil
• one wooden planter box in the sun
• one wooden planter box in the shade
• one plastic planter box in the sun
• water

using only these supplies, which questions can becky investigate with an experiment? select all that apply.

• do sunflowers grow bigger in sunny planter boxes or in shady planter boxes?
• do sunflowers grow taller if they are planted in planter boxes or in pots?
• which type of sunflower grows more leaves?
• do sunflowers grow bigger in wooden planter boxes or in plastic planter boxes?

Explanation:

1. For "Do sunflowers grow bigger in sunny planter boxes or in shady planter boxes?": Becky has planter boxes in sun and shade (same type of planter box, same seeds, soil, water), so she can test this by planting in both and comparing growth.
2. For "Do sunflowers grow taller if they are planted in planter boxes or in pots?": Becky only has planter boxes (no pots), so she can't test this.
3. For "Which type of sunflower grows more leaves?": Becky has seeds from only one type of sunflower, so she can't test this.
4. For "Do sunflowers grow bigger in wooden planter boxes or in plastic planter boxes?": Becky has wooden (in sun) and plastic (in sun) planter boxes (same light, same seeds, soil, water), so she can test this by planting in both and comparing growth.

Answer:

• Do sunflowers grow bigger in sunny planter boxes or in shady planter boxes?
• Do sunflowers grow bigger in wooden planter boxes or in plastic planter boxes?