Spring 2024 Bio Midterm

Joe needs 25 mL of motor oil to test his combustion engine. Which tool would give him the most precise measurement?

• beaker

• flask

• test tube

• graduated cylinder

Which of the measurements below is the most accurate?

• Graduated cylinder - 80.6 mL

• Erlenmeyer flask – 325 mL

• Beaker - 400 mL

• Beaker - 48 mL

Which of the measurements below is the most precise?

• Graduated cylinder - 80.6 mL

• Erlenmeyer flask – 325 mL

• Beaker - 400 mL

• Beaker - 48 mL

In this experiment, the independent variable they are testing is

• change in the mass of the eggs

• the ending mass of the eggs

• the amount of time they were in the solution

• the type of solution the egg is place in

This group also recorded a dependent variable, which is represented by

• the change in mass of the eggs

• the ending mass of the eggs

• the amount of time they were in the solution

• the type of solution the egg is place in

Based on the data this group gathered, the most appropriate hypothesis would be

• If an egg is placed in corn syrup, then it will gain weight.

• If an egg is placed in vinegar overnight, then its shell will dissolve.

• If three eggs are each placed in three different solutions, then the egg in distilled water will lose weight.

• If an egg is placed in a distilled water solution, then the egg will gain weight.

When designing an experiment, scientists will test a relationship between a 'cause' and an 'effect.' The 'effect,' also represented by what the scientist measures and records, is known as the

• constant

• dependent variable

• control group

• independent variable

When writing a conclusion, what should you always refer back to?

• procedure

• hypothesis

• your textbook

• the materials list

What are the special considerations during the Solution Design during Technological Design Process?

• Cost

• Time

• Materials

• All of the above

Which of the following lists the steps of the Technological Design Process in the correct order?

• Problem Identification

• Solution Design

• Implementation

• Evaluation