Susan said, "If I fertilize my geranium plants, they will blossom."

Jonathan's data showed that household cockroaches moved away from raw cucumber slices.

Rene grew bacteria from the mouth on special plates in the laboratory. She placed drops of different mouthwashes on bacteria on each plate.

Kathy used a survey to determine how many of her classmates were left-handed and how many were right-handed.

Jose saw bats catching insects after dark. He asked, "How do bats find the insects in the dark?

Justin wondered if dyes could be taken out of plant leaves, flowers and stems.

Abigail 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 seeds.

Joshua read about growing plants in water. He wanted to know how plants could grow without soil.

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."

Angie's experiment showed that earthworms move away from light.

Sarah said, "If acid rain affects plants in a particular lake, it might affect small animals, such as crayfish, that live in the same water."

Darren fed different diets to three groups of guinea pigs. He showed that guinea pigs need vitamin C and protein in their diets.

Kim's experiment found that chicken eggshells were stronger when she gave the hen feed, to which extra calcium had been added.

Samantha compared the strengths of different types of rope to see which type would hold better for rock climbing.