Scientific Method BR/ES

Stephen predicted that seeds would start to grow faster if an electric current traveled through the soil in which they were planted

• Recognize a problem

• Form a hypothesis

• Perform an experiment

• Draw conclusions

Susan said, “If I fertilize my geranium plants, they will blossom.”

• Recognize a problem

• Making predictions

• Perform an experiment

• Draw conclusions

Jonathan’s data showed that household cockroaches moved away from raw cucumber slices.

• Recognize a problem

• Forming a hypothesis

• Perform an experiment

• Drawing conclusions

Rene grew bacteria from the mouth on special plates in the laboratory. She placed drops of different mouthwashes on bacteria on each plate.

• Recognize a problem

• Forming a hypothesis

• Perform an experiment

• Drawing conclusions

Kathy used a survey to determine how many of her classmates were left-handed and how many were right-handed.

• Recognize a problem

• Forming a hypothesis

• Perform an experiment

• Drawing conclusions

Jose saw bats catching insects after dark. He asked, “How do bats find the insects in the dark?”

• Recognize a problem

• Forming a hypothesis

• Perform an experiment

• Drawing conclusions

Justin wondered if dyes could be taken out of plant leaves, flowers, and stems.

• Recognize a problem

• Forming a hypothesis

• Perform an experiment

• Drawing conclusions

Alice soaked six different kinds of seeds in water for 24 hours. Then she planted the seeds in soil at a depth of I cm. She used the same amount of water, light, and heat for each kind of seed.

• Recognize a problem

• Forming a hypothesis

• Perform an experiment

• Drawing conclusions

Bob read about growing plants in water. He wanted to know how plants could grow without soil.

• Recognize a problem

• Forming a hypothesis

• Perform an experiment

• Drawing conclusions

Kevin said, “If I grow five seedlings in red light, I think the plants will grow faster than the five plants grown in white light.”

• Recognize a problem

• Making a prediction

• Perform an experiment

• Drawing conclusions