The document discusses parachutes and an experiment to test how size affects parachute function. It explains that a parachute is a piece of fabric that uses air resistance to slow falling objects down through the air. The experiment involves cutting circles of material in varying sizes, attaching cotton threads and plasticine, and testing how size impacts descent speed. The conclusion is that a parachute works through air resistance slowing the fall, and that ones that are too big or small will fall too slowly or quickly, respectively.

1. Scientific Enquiry Unit Science and Technology Topic Invention Matthayom 5

2. The world’s best parachute

3. What a parachute is? What it does?

4. A parachute is a large piece of cloth or fabric that slows down an object when falling through the air.

5. Scientific Enquiry What would happen if the parachute was really to big ? What would happen if it was too small? Why does a parachute float?

6. Scientific Enquiry floating gravity air resistance

7. 30cm square pieces of thin material cotton thread

8. scissors masking tape Plasticine

10. Scientific Enquiry Can you explain why your parachute worked? What problem did you have when you were testing it?

11. Scientific Enquiry A parachute work because in the air have air resistance so that it help a parachute slow down when it falling through the air and have gravity so that it keep a parachute come down not float away.

12. Scientific Enquiry If a parachute is too big it will fall down slowly. If a parachute is too small it will fall down quickly.

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