Grade 8 Science: Slide Observation

Grade 8 Science: Slide Observation

Read each question carefully and answer to the best of your ability. Refer to your knowledge of microscopy and cell observation.

1. Which part of the microscope is used to make large adjustments to the focus?

2. What is the purpose of adding a drop of water to a dry mount slide?

1. The   is the platform where the microscope slide is placed.

2. When moving from a lower power objective to a higher power objective, the field of view becomes  .

3. A   mount is used for observing living organisms in a liquid.

1. Label the indicated parts of the microscope.

A:  

B:  

C:  

D:  

2. Describe the steps you would take to prepare a wet mount slide of a cheek cell sample.

1. Always start observing a slide with the highest power objective lens.

2. The diaphragm controls the amount of light passing through the specimen.

Match the cell part to its function.

Compare the two cells shown below.

1. Which cell is a plant cell and which is an animal cell? Justify your answer by listing two distinct differences you can observe.