Stephen predicted that seeds would start to grow faster if an electric current traveled through the soil in which they were planted.
A. Recognize a problem/make an observation
B. Form a hypothesis
C. Test the hypothesis with an experiment
D. Draw conclusions
Susan said, “If I fertilize my geranium plants, they will blossom.”
A. Recognize a problem/make an observation
B. Form a hypothesis
C. Test the hypothesis with an experiment
D. Draw conclusions
Jonathan’s data showed that household cockroaches moved away from raw cucumber slices.
A. Recognize a problem/make an observation
B. Form a hypothesis
C. Test the hypothesis with an experiment
D. Draw conclusions
Rene grew bacteria from the mouth on special plates in the laboratory. She placed drops of different mouthwashes on bacteria on each plate. Then she measured the growth.
A. Recognize a problem/make an observation
B. Form a hypothesis
C. Test the hypothesis with an experiment
D. Draw conclusions
Jose saw bats catching insects after dark. He asked, “How do bats find the insects in the dark?”
A. Recognize a problem/make an observation
B. Form a hypothesis
C. Test the hypothesis with an experiment
D. Draw conclusions
Justin wondered if dyes could be taken out of plant leaves, flowers, and stems.
A. Recognize a problem/make an observation
B. Form a hypothesis
C. Test the hypothesis with an experiment
D. Draw 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.
A. Recognize a problem/make an observation
B. Form a hypothesis
C. Test the hypothesis with an experiment
D. Draw conclusions
Bob read about growing plants in water. He wanted to know how plants could grow without soil.
A. Recognize a problem/make an observation
B. Form a hypothesis
C. Test the hypothesis with an experiment
D. Draw 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.”
A. Recognize a problem/make an observation
B. Form a hypothesis
C. Test the hypothesis with an experiment
D. Draw conclusions
Angela’s experiment proved that earthworms move away from light.
A. Recognize a problem/make an observation
B. Form a hypothesis
C. Test the hypothesis with an experiment
D. Draw conclusions
Michael fed different diets to three groups of guinea pigs. His experiment showed that guinea pigs need vitamin C and protein in their diets.
A. Recognize a problem/make an observation
B. Form a hypothesis
C. Test the hypothesis with an experiment
D. Draw conclusions
Kim’s experiment showed that chicken eggshells were stronger when she gave the hen feed, to which extra calcium had been added.
A. Recognize a problem/make an observation
B. Form a hypothesis
C. Test the hypothesis with an experiment
D. Draw conclusions
Andre noticed that fruit sitting on the counter went rotten more quickly than fruit in the refrigerator.
