Unit 1 Scientific Method and Measurement

What tool is used to measure liquid volume?

• An unmarked erlenmeyer flask

• A graduated cylinder

• A test tube

• A triple beam balance

The mass of a dog is about 30 kg. What is the mass in mg?

• 300 mg

• 30,000,000 mg

• 3,000 mg

• 3 mg

Which prefix means 0.01?

• Hecto-

• Milli-

• Deci-

• Centi-

What prefix means 10?

• Hecto-

• Milli-

• Deci-

• Centi-

Which is the correct order to show unit from smallest to largest?

• kL, mL, L

• L, kL, mL

• mL, L, kL

• L, mL, kL

What is the correct volume shown in this graduated cylinder?

• 24 mL

• 25 mL

• 23 mL

• 22 mL

9.1234 × 10⁴ expressed as a number is —

• 91,234.0

• 91.234

• 912,340.0

• 9.1234

0.00044 written in scientific notation is —

• 4.4 × 10^-4

• 4.4 × 10⁴

• 4.4 × 10⁵

• 4.4 × 10^-5

What part of an experiment do we change on purpose?

• Independent Variable

• Data

• Dependent Variable

• Results

Which part of an experimental procedure would be written on the y-axis of a graph?

• Constant

• Independent Variable

• Dependent Variable

• Control