Question

logan is growing hydrangeas in his garden. he notices that the hydrangeas have different colors of flowers depending on where they were planted. he wonders what factors affect the color of the hydrangeas. he has the following supplies available: two hydrangea plants, one bag of fertilizer, water, aluminum sulfate. using only these supplies, which questions can logan investigate with an experiment? select all that apply. do hydrangeas grow different - colored flowers when watered with water and vinegar compared to water alone? do hydrangeas grow different - colored flowers when grown with fertilizer compared to without fertilizer? do hydrangeas grow different - colored flowers when earthworms are introduced to the soil? do hydrangeas grow different - colored flowers when kept under a purple grow light compared to a green grow light?

Explanation:

Logan has hydrangea plants, fertilizer, water, and aluminum - sulfate. He can use these supplies to test the impact of different watering substances (water vs water - vinegar mix), the presence of fertilizer, and other factors related to the soil or light on flower color. But he has no earthworms or different - colored grow lights among his supplies, so only the first two questions can be investigated with the given supplies.

Answer:

1. Do hydrangeas grow different - colored flowers when watered with water and vinegar compared to water alone?
2. Do hydrangeas grow different - colored flowers when grown with fertilizer compared to without fertilizer?