Natural Resources
This natural resource provides most of the energy to the atmosphere, oceans, and crusts of the Earth
Synthetic materials are made from _____
natural resources
Water (renewable or not?)
Renewable
Wool (from an animal? plant? or petroleum/oil?)
Animal-based
_____+_____=______
What should be in these blanks? This is a chemical equation that shows chemical changes.
reactant + reactant = product
What affects the production and use of synthetic materials?
limited resources and economic conditions
True or False?
All synthetic materials cause bad by-products.
False.
Some by-products are useful, such as yogurt-forming bacteria.
Sunlight
renewable
Oil
petroleum-based
Materials found in nature that can be used to benefit human life is called?
natural resources
Do lab-grown meats meet the definition of “Synthetic food”? Why or why not?
No. Lab-grown meats are grown in labs, but the cells originate from the animal body, and simply multiplied in the lab.
Why are synthetic materials often preferred (liked or chosen) more than actual natural materials?
Because they are often cheaper to make
Coal
nonrenewable
Rubber
plant-based
Materials made by humans.
synthetic materials
What synthetic material is found to be able to replace oil (petroleum)?
Ethanol from corn
The practical(실용적인 实用) use of scientific knowledge is known as _______.
technology.
Wind
renewable
Lotions
plant-based
A molecule made up of many small organic molecules bonded together, forming a long chain.
polymer
Ethanol was found to be less beneficial than what people thought. Why?
More pollution caused by having to grow corn farms. Destroys habitats
What is one negative effect and one positive effect of synthetic materials?
Look up your own answers to this question.
Oil
nonrenewable
Gelatin (jelly that we eat)
animal-based
A secondary product that results from a manufacturing process or chemical reaction (similar to side-effects of drugs)
By-product