Page 38 - Science Course 1 (Book 1)

Mo.1-L4 : Key Concept Organizer

Directions: On each line, write the term from the word bank that correctly completes each sentence.
Some terms may be used more than once.
compound microscope scanning electron microscope light microscope

electron microscope transmission electron microscope

1. A simple uses one lens to magnify an image.

2. The magnification of a(n) is found by multiplying the
magnification of the ocular lens by the magnification of the objective lens.

3. A(n) is a type of light microscope.

4. A TEM is one type of .

5. In a(n) , electrons bounce off an object.

6.In a(n) , electrons pass through an object.

7.A(n) produces a three-dimensional image of a cell’s surface.

8.A(n) produces an image of the tiny structures inside a cell.

9. The two main types of microscopes are the

and the .

Mo.1-L4 : Key Concept Check

Directions: Answer each question on the lines provided.

1.How is a magnifying lens similar to the first microscope invented?

2.What did the invention of microscopes allow people to see?

3.Leeuwenhoek’s microscope could magnify an image about 270 times its original size. What kinds of objects
did he observe with his microscope?

4.In the 1700s, what important discovery about living things did Hooke make using his microscope?

5.What can scientists today study about living things using microscopes?

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