The Scientific Method

Which of the following is a testable hypothesis?

A scientist wants to investigate how different amounts of fertilizer affect the growth of sunflower plants. The experiment includes three groups of sunflowers. Group A receives no fertilizer. Group B receives low density fertilizer. Group C received high density fertilizer.

All pots are placed under the same conditions of sunlight, temperature, and watering schedule. The height of the sunflower plants is measured weekly for six weeks. What is the independent variable?

A scientist wants to investigate how different amounts of fertilizer affect the growth of sunflower plants. The experiment includes three groups of sunflowers. Group A receives no fertilizer. Group B receives low density fertilizer. Group C received high density fertilizer.

All pots are placed under the same conditions of sunlight, temperature, and watering schedule. The height of the sunflower plants is measured weekly for six weeks. What is the dependent variable?

A scientist wants to investigate how different amounts of fertilizer affect the growth of sunflower plants. The experiment includes three groups of sunflowers. Group A receives no fertilizer. Group B receives low density fertilizer. Group C received high density fertilizer.

All pots are placed under the same conditions of sunlight, temperature, and watering schedule. The height of the sunflower plants is measured weekly for six weeks. What are the constants?

A scientist wants to investigate how different amounts of fertilizer affect the growth of sunflower plants. The experiment includes three groups of sunflowers. Group A receives no fertilizer. Group B receives low density fertilizer. Group C received high density fertilizer.

All pots are placed under the same conditions of sunlight, temperature, and watering schedule. The height of the sunflower plants is measured weekly for six weeks. What is the control group?

A farmer wants to know if watering his lemon trees with more water will help produce more lemons. He waters one tree with the normal amount of water, one tree with double the amount of water, and the third tree with triple the amount of water. He makes sure all the trees are kept at the same temperature and receive equal amounts of light. What is the independent variable?

A farmer wants to know if watering his lemon trees with more water will help produce more lemons. He waters one tree with the normal amount of water, one tree with double the amount of water, and the third tree with triple the amount of water. He makes sure all the trees are kept at the same temperature and receive equal amounts of light. What is the dependent variable?

A farmer wants to know if watering his lemon trees with more water will help produce more lemons. He waters one tree with the normal amount of water, one tree with double the amount of water, and the third tree with triple the amount of water. He makes sure all the trees are kept at the same temperature and receive equal amounts of light. What is the constants?

A farmer wants to know if watering his lemon trees with more water will help produce more lemons. He waters one tree with the normal amount of water, one tree with double the amount of water, and the third tree with triple the amount of water. He makes sure all the trees are kept at the same temperature and receive equal amounts of light. What is the control group?