Synthetic Materials
Is plastic a type of synthetic material?
yes.
Are all the synthetic chemical equations balanced.
Yes.
Does the arrangement of atoms affect the properties?
yes
Can fruits be an example of synthetic materials?
Yes they can be grown inorganically with chemicals to last longer or add color.
What are composites?
Synthetic materials that are made up of two or more materials.
Which of these is a synthetic materials?
Glass or a tree
Glass
the starting substances
Is medicine an example of a synthetic material?
yes
Which is an example of a synthetic material?
Fiber or Cotton
What is Fiber
What are polymers?
long molecules that are made of repeating units
2 reasons we create synthetic products
They are: easier to obatin, use less resources, less expensive, used the same way in the body as natural materials
True or false?
All synthetic materials undergo a chemical reaction/change?
True
Electrical conductivity, solubility, and texture are ________ types of properties.
What are Physical Properties?
2 Pros/Benefits of synthetic pesticides
What is... elimate/control pests, increase harvest, less disease causing insects, increase profit for farmers
True or false?
Do materials that make up composites keep their original properties?
False
What is the definition of a synthetic material?
human-made materials that are produced using natural or synthetic materials.
When researchers are creating a new material they study the _______ structure of the material.
What is molecular or atomic?
Why do synthetic materials have different properties than the reactants used to make them?
They undergo a chemical reaction to form a new substance.
2 Con/Risk of synthetic materials...
Waht is ... can be toxic, water pollution, long-term effects, take a long time to decompose
1 way to reinforce this composite material is by embedding steel rods into it, the material is ...
What is concrete.
Choose the one that has more branching, greater strength and is denser
Flexible Polyethelene or Rigid Polyethelene
What is Rigid Polyethelene
List at least 2 properties that cause chemical change
What is fermenting (rotting), combustion (burning), oxidation (like rusting), acid-base reactions, exposure to heat, exposure to light (photochemical reactions), mixing of reactants, and the presence of catalysts
Which are the physical properties of materials?
Burning, crushing, cutting, freezing, melting, or rusting,
What are crushing, cutting, freezing, and melting
Over the last 200 years, scientists have increased their knowledge of how to use chemicals to create medicines. What is one result of this trend?
What is Longer Life Expectancy?
Between polymers and composites, which one can be found as either natural or synthetic?
What are polymers?