Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is loosely held dirt?
💡 Hint: Think about dirt that you can clean without much effort.
Question 2
Easy
Name a common solvent used in cleaning.
💡 Hint: Consider household items that can dissolve grease.
Practice 4 more questions and get performance evaluation
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What type of dirt can be easily brushed off?
💡 Hint: Think about what 'loosely' means.
Question 2
True or False: Water alone can remove all types of dirt.
💡 Hint: Consider what happens when water meets grease.
Solve and get performance evaluation
Push your limits with challenges.
Question 1
You have a shirt with both oily and dusty stains. Describe the steps you would take to clean it effectively.
💡 Hint: Break down the cleaning process into manageable steps.
Question 2
In a laundry experiment, your results showed redeposition of dirt after washing. Investigate possible reasons and suggest solutions.
💡 Hint: Think about how each element interacts in the washing process.
Challenge and get performance evaluation