Skip to content / Đến nội dung
ThichHocToan.com

IMSO 2006 Science International - Theory II Question 1

IMSO Science · IMSO 2006 Science International - Theory II

Question 1

Randy collected soil and put it into a glass jar. He added some water, covered it and left it on the table for a few weeks. He noticed that green substance has grown on the wall of the jar. He then wrote, “The soil may contain some algae.” Then he placed the green substance under a microscope. He found some microorganisms with chloroplasts. Finally, he compared the shape of the organism with a picture in the book. He found out that some of the organisms are called Chlorella.

Use the following keywords to answer the questions: a generalization; a hypothesis; a conclusion; an observation.

a. “The soil may contain some algae.” This statement is best described as … (Score: 1)

b. Then he placed the green substance under a microscope. He found some microorganisms with chloroplasts. This activity is called … (Score: 1)

c. He found out that some of the organisms are called Chlorella. This statement is best described as … (Score: 1)