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Scientific Method BR/ES
2 pages

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: Form a hypothesis. Susan said, “If I fertilize my geranium plants, they will blossom.”: Making predictions. Jonathan’s data showed that household cockroaches moved away from raw cucumber slices: 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: Perform an experiment. Jose saw bats catching insects after dark. He asked, “How do bats find the insects in the dark?”: Recognize a problem. Justin wondered if dyes could be taken out of plant leaves, flowers, and stems: Recognize a problem. 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: Perform an experiment. Bob read about growing plants in water. He wanted to know how plants could grow without soil: Recognize a problem. 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.”: Making a prediction. Angela’s experiment proved that earthworms move away from light: Drawing conclusions. Scott said, “If acid rain affects plants in a particular lake, it might affect small animals, such as crayfish, that live in the same water.”: Forming a hypothesis. Michael fed different diets to three groups of guinea pigs. His experiment showed that guinea pigs need vitamin C and protein in their diets: Drawing conclusions. Scientific hypotheses are most often tested by the process of: Experimentation. The container is filled to the 350 mL mark with water: Observation . The sun rose at 6:54 AM: Observation. The caterpillar did not eat the moth because it is not a carnivore: Inference. Dinosaurs died out because they could not adapt to the changing climate: Inference. The plant on the left is growing more because it is receiving more water: Inference

Grade:Grade 3_AI - Grade 5_AI
7

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