Stain Removal Experiment Assessment

The video tutorial guides students through designing and conducting an experiment to compare the effectiveness of water and acetone in removing various stains from fabric. Students are instructed to consider variables, design their setup, and predict outcomes. They must analyze results and compare the properties of the solutions, using skills learned in class.

What is the main objective of the experiment described in the video?

• To test the durability of different fabrics

• To compare the stain removal capabilities of different solutions

• To measure the evaporation rate of acetone

• To analyze the chemical composition of stains

Which of the following stains is NOT mentioned in the experiment setup?

• Watercolor paint

• Ink

• Oil paint

• Nail polish

What equipment is provided for applying solutions to the fabric?

• Spray bottles

• Sponges

• Cotton wheel utensils

• Brushes

Which variable is NOT mentioned as something to consider when designing the experiment?

• Variables to keep constant

• Variables to ignore

• Variables to measure

• Variables to change

How many constants should be identified in the experiment setup?

• 5

• 10

• 15

• 20

What is the purpose of predicting the data outcome before conducting the experiment?

• To avoid conducting the experiment

• To ensure the experiment is unnecessary

• To compare with actual results for analysis

• To determine the best solution beforehand

What should be included in the reasoning for different results using acetone compared to water?

• Drawings, models, or diagrams

• Only textual explanations

• Video demonstrations

• Chemical equations

Which concept is NOT mentioned as part of the skills to use in the final assessment?

• Molecular weight

• Types of atoms

• Inter and intramolecular bonds

• Polarity

What is the final task in the assessment according to the video?

• Comparing the differences between water and acetone

• Designing a new experiment

• Writing a report on stain types

• Creating a presentation on fabric types

Where should the completed experiment be submitted?

• Via email

• On PowerSchool

• In person

• On a USB drive