Environmental Technology Midterm 2024-2025

Your teacher has asked you to explain the difference between quantitative and qualitative observations. Which statement is correct?

• Quantitative observations use numbers, qualitative uses the senses.
• Quantitative observations use the senses, qualitative uses numbers.
• Quantitative observations use measurement, qualitative uses numbers.
• Quantitative observations use colors, qualitative uses the senses.

If your teacher asked you to make qualitative observations about the class’s pet hamster, which group of words might be used?

• A  mass of 3 kg, 11 cm long, age of 16 months
• A  mass of 3 kg, 11 cm long, cute
• A  long hair, white and brown colored, soft
• A  temperature, length, weight

What words would be most appropriate to see if a student was describing the QUANTITATIVE properties of a classmate?

• He is nice

• He is tall

• He is 5 foot 11

• He is quiet

Which of the following is an example of a qualitative observation?

• The liquid has a pH of 7.

• The liquid is blue.

• The liquid is 100 ml.

• The liquid weighs 200 grams.

Your teacher asks you to record quantitative data about a plant. Which of the following would you include?

• The plant is green.

• The plant has broad leaves.

• The plant is tall.

• The plant is 30 cm tall.

If you are asked to describe the qualitative features of a new book, which words might you use?

• The book has 300 pages.

• The book is 20 cm long.

• The book colorful and smells old.

• The book weighs 500 grams.

Used to measure specific volume of liquid

• beaker

• graduated cylinder

• test tube

• erlenmyer flask

Used to hold and/or mix solid and liquid materials

• beaker

• graduated cylinder

• test tube

• Pipette

Used to transfer small amount of liquid

• graduated cylinder

• test tube

• scoopula

• pipette

Fooling around in the lab, throwing things, and doing unauthorized experiments are all:

• Not dangerous
• Great if you have time
• Always against the rules
• Ok every other Tuesday