Properties
Name a property of paper.
Smooth
Light
Thin
What type of clothing should you wear in the rain?
Waterproof
What do popsicles and plastic toys have in common?
Both of them can be melted into shapes.
If you are designing winter boots, which material properties would you choose? Choose 4
- Heavy
- Soft
- See-through
- Absorbent
- Stiff
- Stretchy
- Heat-trapping
- Waterproof
- Soft
- Stiff
- Heat-trapping
- Waterproof
What does classify mean?
To arrange materials by their properties.
Name a property of wood.
Hard
Rough
Heavy
What type of clothing should you wear when it is cold outside?
Heat-trapping
Why is it easier to make plastic toys instead of wooden toys?
Plastic doesn't need to be carved by hand.
Why are so many toys made out of plastic?
Plastic is a material that has the property of being meltable and it does not need to be carved.
What are properties?
Characteristics of materials.
ex. Color, weight, length, texture
Name a property of metal.
Shiny
Tough
Lets heat through
What type of clothing should you wear in the fall?
A lightweight jacket.
Scientists invent new materials so they can..
Invent things to solve problems
What is the difference between clothing that people wear when it's cold compared to when it's hot?
When it's cold people wear clothing that is heat-trapping and soft because they want to stay warm and comfortable.
When it is hot people wear clothing that is absorbent and opaque because they want to absorb the sweat and be protected from the sun
What does texture mean?
How smooth or rough something is?
Name a property of plastic.
Meltable
Moldable
If it is really hot and sunny outside, you probably want to wear clothes that are..
Absorbent
A_____ can be built out of smaller pieces of___.
a. House........... wood
b. Skyscraper....... concrete and steel
c. Wall................. brick
d. All of the above
d. All of the above
What are two ways you could change the properties of paper to make it stronger?
- Folding it
- Using multiple pieces of paper together.
What does hardness describe?
How firm something is.