Stephen predicted that seeds would start to grow faster if an electric current traveled through the soil in which they were planted.
recognize a problem
test the hypothesis with an experiment
form a hypothesis
draw conclusions
2. Multiple Choice
20 seconds
1 pt
Susan said, “If I fertilize my geranium plants, they will blossom.”
recognize a problem
test the hypothesis with an experiment
form a hypothesis
draw conclusions
3. Multiple Choice
1 minute
1 pt
Johathan’s data showed that household cockroaches moved away from raw cucumber slices.
recognize a problem
test the hypothesis with an experiment
form a hypothesis
draw conclusions
4. Multiple Choice
1 minute
1 pt
Rene grew bacteria from the mouth on special plates in the laboratory. She placed drops of different mouthwashes on bacteria on each plate.
recognize a problem
test the hypothesis with an experiment
form a hypothesis
draw conclusions
5. Multiple Choice
1 minute
1 pt
Kathy used a survey to determine how many of her classmates were left-handed and how many were right-handed.
recognize a problem
test the hypothesis with an experiment
form a hypothesis
draw conclusions
6. Multiple Choice
1 minute
1 pt
Dana want to know how different are synthetic fibers from natural fibers.
recognize a problem
test the hypothesis with an experiment
form a hypothesis
draw conclusions
7. Multiple Choice
20 seconds
1 pt
Jose saw bats catching insects after dark. He asked, “How do bats find insects in the dark?”
recognize a problem
test the hypothesis with an experiment
form a hypothesis
draw conclusions
8. Multiple Choice
1 minute
1 pt
Justin wondered if dyes could be taken out of plant leaves, flowers, and stems.
recognize a problem
test the hypothesis with an experiment
form a hypothesis
draw conclusions
9. Multiple Choice
1 minute
1 pt
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.
recognize a problem
test the hypothesis with an experiment
form a hypothesis
draw conclusions
10. Multiple Choice
1 minute
1 pt
Bob read about growing plants in water. He wanted to know how plants could grow without soil.
recognize a problem
test the hypothesis with an experiment
form a hypothesis
draw conclusions
11. Multiple Choice
1 minute
1 pt
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.”
recognize a problem
test the hypothesis with an experiment
form a hypothesis
draw conclusions
12. Multiple Choice
1 minute
1 pt
Angela’s experiment proved that earthworms move away from light.
recognize a problem
test the hypothesis with an experiment
form a hypothesis
draw conclusions
13. Multiple Choice
1 minute
1 pt
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.”
recognize a problem
test the hypothesis with an experiment
form a hypothesis
draw conclusions
14. Multiple Choice
1 minute
1 pt
Michael fed different diets to three groups of guinea pigs. His experiment showed that guinea pigs need vitamin C and protein in their diets.
recognize a problem
test the hypothesis with an experiment
form a hypothesis
draw conclusions
15. Multiple Choice
1 minute
1 pt
Kim’s experiment showed that chicken egg shells were stronger when she gave the hen feed to which extra calcium had been added.