B1.1 The microscope - Plenary

Which part of the microscope is used to bring an object into focus?

• Objective lens

• Fine-focus knob

• Light source

When recording microscope observations, what should you always include?

• The name of the microscope manufacturer

• The magnification used

• The time of day you made the observation

Which of the following best describes a scientific observation?

• Making a prediction based on personal opinions

• Carefully looking at an object and recording details

• Guessing what something might look like under a microscope

Which part of the microscope should you look through to see the object?

• Objective lens

• Eyepiece lens

• Stage

Which step should you follow first when using a microscope?

• Move the stage to its lowest position

• Look through the eyepiece

• Turn the fine-focus knob

If an eyepiece lens has a magnification of x10 and the objective lens has a magnification of x20, what is the total magnification?

• 200x

• 30x

• 100x

Why do some objects need to be very thin when using a microscope?

• So that light can pass through them

• To prevent the lens from breaking

• Because thick objects are too heavy

Which part of the microscope holds the slide in place?

• The objective lens

• The stage

• The coarse-focus knob

Why might a scientist add color dye to a sample before observing it?

• To make the object easier to see

• To make the microscope work better

• To change the shape of the cells

What did Robert Hooke name the small structures he observed in cork?

• Chambers

• Cells

• Blocks