Scientific Method Matching WS
Directions: Each sentence below describes a step of the scientific method. Match each sentence with a step of the scientific method listed below.
A. Identify a Problem C. Design and Carry out an Experiment
B. State a Hypothesis D. State Conclusion
______1. Stephen predicted that seeds would start to grow faster if an electric current
traveled through the soil in which they were planted.
______2. Kay’s experiment showed that chicken egg shells were stronger when she gave
them hen feed that contained extra calcium.
______3. Susan said, “I believe if I fertilize my rose plants, they will blossom.”
______4. John’s experiment showed that cockroaches moved away from raw cucumbers.
______5. Rene grew bacteria from her mouth on special plates in the lab. She then placed
drops of different brands of mouthwashes on the bacteria in each dish.
______6. Diane wanted to know how man-made fibers were different from natural fibers.
______7. Jim wondered if dyes could be taken out of plant leaves, flowers and stems.
______8. After feeding different diets to three groups of Guinea pigs, Michael’s
experiment showed that Guinea pigs need vitamin C and protein in their diet.
______9. Justin saw bats catching insects after dark. He wanted to know, “How can bats
find insects in the dark?”
______10. Angie 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.
______11. Bob read about growing plants in water. He wanted to know how plants could
grow without soil.
______12. 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.”
______13. Kim’s experiment proved that earthworms move away from light.
______14. Scot concluded that acid rain can affect plants and small animals, such as
crayfish,that live in rivers and lakes.
______14. Kay’s experiment showed that chicken egg shells were stronger when she gave
them hen feed that contained extra calcium.