Scientific Method and Metric System

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

• Make an observation

• Forming a hypothesis

• Experiment

• Data

• Conclusion

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

• Make an observation

• Forming a hypothesis

• Experiment

• Data

• Conclusion

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

• Make an observation

• Forming a hypothesis

• Experiment

• Data

• Conclusion

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

• Make an observation

• Forming a hypothesis

• Experiment

• Data

• Conclusion

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

• Make an observation

• Forming a hypothesis

• Experiment

• Data

• Conclusion

Dana wanted to know how synthetic fibers were different from natural fibers.

• Make an observation

• Forming a hypothesis

• Experiment

• Data

• Conclusion

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

• Make an observation

• Forming a hypothesis

• Experiment

• Data

• Conclusion

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

• Make an observation

• Forming a hypothesis

• Experiment

• Data

• Conclusion

Arjulia soaked six different kinds of seeds in water for 24 hours. Then she planted the seeds in soil at a depth of 1 cm. She used the same amount of water, light, and heat for each kind of seed.

• Make an observation

• Forming a hypothesis

• Experiment

• Data

• Conclusion

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

• Make an observation

• Forming a hypothesis

• Experiment

• Data

• Conclusion