Biology Unit 1 Test

Used to hold and/or mix solid and liquid materials

• beaker

• graduated cylinder

• test tube

• erlenmyer flask

Used to measure specific volume of liquid

• beaker

• graduated cylinder

• test tube

• erlenmyer flask

Used to hold small amounts of liquids and solids

• beaker

• graduated cylinder

• test tube

• erlenmyer flask

How close a measurement is to the accepted value is called ___________.

This bullseye demonstrates...

• High Accuracy & High Precision

• High Accuracy & Low Precision

• Low Accuracy & High Precision

• Low Accuracy & Low Precision

Which is the more precise measurement?

• 4 mL

• 4.3 mL

• 4.30 mL

• 4.300 mL

A set of data are all close in value to each other, but they are not close to the actual value. This set of data can be described as _________________.

• precise

• accurate

To ensure results are reliable the experiment should be

• Done once

• Repeated

• Done as exactly the same as the method outlines

• Repeated if necessary

Randall wants to know if the amount of salt in the water has an effect on his goldfish. What is the independent variable?

• amount of water

• number of goldfish

• amount of salt

• health of the goldfish

Jose wants to know if the diet of a rat affects the body weight of the rat.

What is the independent variable?

• diet of a rat

• body weight

• weight of food

• number of rats