Question

each sentence below describes a step of the scientific method. match each sentence with the correct step.
a. draw conclusions
b. form a hypothesis
c. results
d. experiment
e. recognize a problem
she soaked six different kinds of seeds in water for 24 hours. then she planted the seeds at a depth of 6cm. she used the same amount of water, light, and heat for each kind of seed.
he read about growing plants in water. he wanted to know how plants could grow without soil.
sara said, if i grow five seedlings in red light, i think the plants will grow faster than the plants grown in white light.
he fed different diets to three groups of guinea pigs. his experiment showed that guinea pigs needed vitamin c and protein in their diets.
after performing the vitamin c lab experiment, sara discovered that 22 drops of iodine changed the color of fresh squeezed orange juice.

Explanation:

1. Soaking and planting seeds with controlled - variables is an experiment.
2. Wanting to know how plants can grow without soil is recognizing a problem.
3. Stating a prediction about plant growth in different lights is forming a hypothesis.
4. Feeding different diets to guinea - pigs and getting a conclusion about their nutritional needs is drawing conclusions.
5. Discovering the number of iodine drops to change the color of orange juice is results.

Answer:

1. D. experiment
2. E. recognize a problem
3. B. form a hypothesis
4. A. draw conclusions
5. C. results