Podcast
Questions and Answers
What is the main reason why we use glass?
What is the main reason why we use glass?
- It is very heavy
- It is hard
- It is clear and transparent (correct)
- It is very strong
What is the main reason why we use metal to make things?
What is the main reason why we use metal to make things?
- It is smooth
- It is soft
- It is very strong (correct)
- It is very light
What is the main difference between plastic bags and bicycle helmets made from plastic?
What is the main difference between plastic bags and bicycle helmets made from plastic?
- Bicycle helmets are softer
- Bicycle helmets are stronger (correct)
- Bicycle helmets are lighter
- Bicycle helmets are more flexible
What is the main reason why we use cloth?
What is the main reason why we use cloth?
What is the main reason why we use plastic to make bicycle helmets?
What is the main reason why we use plastic to make bicycle helmets?
What is the main difference between glass and metal?
What is the main difference between glass and metal?
What is the main reason why we use wood to make chairs and tables?
What is the main reason why we use wood to make chairs and tables?
What is the main difference between plastic bags and bicycle helmets made from plastic?
What is the main difference between plastic bags and bicycle helmets made from plastic?
What is the main reason why we use metal for keys?
What is the main reason why we use metal for keys?
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Study Notes
Materials and Their Uses
- We use glass because it is transparent, durable, and resistant to corrosion.
Metals and Their Uses
- We use metal to make things because of its strength, durability, and ability to be shaped into various forms.
Plastics and Their Uses
- The main difference between plastic bags and bicycle helmets made from plastic is their purpose and properties: plastic bags are flexible and used for carrying items, while bicycle helmets are rigid and used for protection.
Textiles and Their Uses
- We use cloth because of its flexibility, comfort, and ability to provide warmth.
Plastics in Safety Equipment
- We use plastic to make bicycle helmets because it is lightweight, strong, and provides excellent protection.
Properties of Materials
- The main difference between glass and metal is their properties: glass is transparent and brittle, while metal is opaque and malleable.
Wood and Its Uses
- We use wood to make chairs and tables because of its durability, aesthetic appeal, and ability to be shaped into various forms.
Comparing Plastics
- The main difference between plastic bags and bicycle helmets made from plastic is their purpose and properties: plastic bags are flexible and used for carrying items, while bicycle helmets are rigid and used for protection.
Metals in Everyday Objects
- We use metal for keys because of its strength, durability, and ability to be shaped into a functional form.
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