Amoeba Sisters Microscopes

Place each term next to the phrase that best defines it.

(a)   increasing the apparent size of an object using lenses.

​ (b)   the ability to tell the difference between two objects.

• magnification
• resolution

The light bulb at the bottom of the microscope is known as...

• the light source

• condenser lens

• diaphragm

The device on the bottom of the stage that controls how much light passes through the object on the slide is known as the...

• light source

• condenser lens

• diaphragm

The lens that is located within the stage is focuses the light on the object on the stage is called the...

• light source

• condenser lens

• diaphragm

Which lens is closest to the object you are viewing on the stage?

• objective lens

• ocular lens

Which lens is closest to your eye when you look in a microscope?

• objective lens

• ocular lens

A student is looking at an onion root cell on a school microscope. The ocular lens has a magnification of 10x and they are using a high-power objective lens with a magnification of 40x. What is the total magnification?

Place the following steps for using a school microscope in order.

Step 1: Plug in the microscope and make sure the low power objective is in place.

Step 2: ​ (a)  

Step 3:​ (b)  

Step 4: ​ (c)  

Step 5:​ (d)  

Step 6:​ (e)  

Step 7: Record observations and put the microscope away properly.

• move the stage and objective lenses apart
• Place a slide on the stage under the stage clips
• turn the course focus until you see something
• Use the fine focus until the object is clear
• Increase the objective magnification

Are you ready to use a microscope!

• Yes!

• No!