Lesson 3.4 Flexibility

1. What are your goals for this lesson?

• I can confidently say that flexible materials can bend, stretch or be squashed by testing and examining materials like balloon.

• I will just copy notes and post it in the school portal.

• I can prove that rigid materials cannot bend or change shape through practical investigation using any rigid material available.

• I don't have any goal at all.

2. What happens to balloons when we let air out from it? Type SHRINK or EXPAND?

3. What should be the most important property of book pages?

• slippery

• rigid

• brittle

• flexible

4. Can clothes move with your body when you move? Do you consider clothes as flexible materials? Type YES or NO.

5. What is inside an inflatable life jacket? Air or water?

6. Why do some materials need to be flexible, like clothes?

• because it needs to fit the job

• because all things need to be stretchy

• because all things need to be rigid.

• because it needs hold rigid materials