REVIEW EXERCISES IN SCIENCE 4

  What is the primary purpose of a graduated cylinder in a laboratory?

• To mix chemicals
• To determine the temperature of liquids
• To weigh solids
• Accurately measure the volume of liquids

What instrument is commonly used to measure temperature?

• thermometer
• scale
• ruler
• barometer

What part of microscope do you look through to see the specimen?

• lens
• stage
• base
• eyepiece

Which part of the microscope supports the slide with the specimen on it?

• base
• lens
• eyepiece
• stage

Which type of waste can be recycled to make new products?

• Biodegradable waste
• Recyclable waste
• Non-recyclable waste
• Hazardous waste

If you change the shape of a piece of clay by squeezing it into a ball, which property of matter are you affecting?

• density
• shape
• color
• volume

.  If you mix salt and water, the salt seems to disappear into the water.  What property of matter is demonstrated in this case?

• density
• viscosity
• conductivity
• solubility or dissolving

Why is it important to start with the lowest magnification (objective lens) when using a microscope to observe a specimen?

• To make the specimen appear larger.
• To reduce the risk of damaging the specimen.
• To increase the resolution of the image.
• To have a wider field of view and better depth of field.

Imagine you’re using a microscope to observe a cell.  You start with the low-power objective lens and then switch to the high-power objective lens.  What happens to the image of the cell when you switch to the high-power lens?

• The image of the cell becomes smaller.
• The image of the cell remains the same size.
• The image of the cell becomes blurry.
• The image of the cell becomes magnified and appears larger.

I f you’re observing a tiny organism under a microscope and you want to make it appear larger, which part of the microscope should you adjust, and how?

• stage or specimen holder
• magnification or objective lens
• eyepiece or ocular lens
• illumination or light source