Real-world examples of non-absorbent objects.

🧪 Quick Study Guide

• 💧 Non-absorbent materials resist the uptake of liquids, particularly water.
• 🧱 Their surfaces have properties that prevent liquids from penetrating or being drawn in.
• 💡 Common examples include many metals, plastics, glass, and certain types of treated fabrics.
• 🔬 Absorption involves a material drawing a liquid into its internal structure, whereas non-absorbent materials keep the liquid on the surface.
• 🌡️ Temperature can affect the viscosity of liquids, potentially influencing how they interact with surfaces, but the material's inherent properties are the main factor.

🤔 Practice Quiz

1. Which of the following is a real-world example of a non-absorbent object?
   1. A) A sponge
   2. B) A paper towel
   3. C) A glass window
   4. D) A cotton shirt


2. Which material is commonly used because of its non-absorbent properties in raincoats?
   1. A) Wool
   2. B) Cotton
   3. C) Polyester
   4. D) Linen


3. Why is stainless steel used in many kitchen sinks?
   1. A) It is highly absorbent.
   2. B) It is non-absorbent and resists staining.
   3. C) It is very cheap.
   4. D) It is easily scratched.


4. Which of these materials would be the *least* suitable for cleaning up a water spill?
   1. A) A microfiber cloth
   2. B) A sponge
   3. C) A rubber mat
   4. D) A cotton towel


5. What property of plastic makes it useful for food storage containers?
   1. A) Its high absorbency
   2. B) Its non-absorbent nature
   3. C) Its flexibility
   4. D) Its color


6. Which of the following is generally non-absorbent, even without special treatment?
   1. A) Paper
   2. B) Cardboard
   3. C) Aluminum foil
   4. D) Burlap


7. Why are tiles often used in bathrooms?
   1. A) They are very absorbent.
   2. B) They are easy to break.
   3. C) They are non-absorbent and easy to clean.
   4. D) They are extremely expensive.