Chemistry, 06.10.2019 05:20, andrewjewell2005
Each sentence below describes a step of the scientific method. match each sentence with a step of the scientific method listed below.
a. recognize a problem b. form a hypothesis c. test the hypothesis with an experiment d. draw conclusions
1 stephen predicted that seeds would start to grow faster if an electric current traveled through the soil in which they were planted.
2 susan said, “if i fertilize my geranium plants, they will blossom.”
3 jonathan’s data showed that household cockroaches moved away from raw cucumber slices.
4 rene grew bacteria from the mouth on special plates in the laboratory. she placed drops of different mouthwashes on bacteria on each plate.
5 kathy used a survey to determine how many of her classmates were left-handed and how many were right-handed.
6 jose saw bats catching insects after dark. he asked, “how do bats find the insects in the dark? ”
7 justin wondered if dyes could be taken out of plant leaves, flowers, and stems. 8 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.”
Answers: 1
Chemistry, 22.06.2019 00:30, BLASIANNkidd
Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.
Answers: 1
Chemistry, 22.06.2019 21:00, rhondafits9000
Which property of water causes water drops to bead on a freshly waxed car?
Answers: 2
Each sentence below describes a step of the scientific method. match each sentence with a step of th...
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