Science Ch 18 Flashcards
(26 cards)
What can you use to solve problems, make decisions, and form new ideas?
Using the scientific process and knowledge
What is technology?
Technology is using scientific knowledge for a purpose
What are the three technological time periods?
Cavemen Technology
After 1800 technology
Today’s technology
What is an example of caveman technology?
Discovering fire and how to use it to benefit their lives like creating warmth, light, to cook food, and scare off predators
What is an example of after 1800s technology?
Refrigeration preserve foods longer,
railroads faster/easier transportation,
cars lights and inventions of machines that run by electricity, and electricity
What is an example of today’s technology?
Rocketships, robots, cell phones, electric cars
What is an inventor?
Someone who uses technology to develop a new device or process or solve a problem
What is an example of technology changing things for the better?
An example is like building roads and bridges, faster way of doing things
What are some negative changes Technology can do?
Machines/cars can pollute the air, water, and soil
How has technology changed the way people live?
Advances in medicine, job, opportunities, and change in transportation
Give some examples of simple technology in our homes…
Simple= scissors, light, heat
What invention led to the video development of DVDs?
CDs or compact discs
Give examples of technology in the homes that have improved the health of humans
Refrigerators or freezers that helped humans to store food longer without it spoiling
Dishwashers that can clean dishes faster than washing them by hand
Washing machines and dryers that can clean and dry clothes at a faster rate than hand washing and clothesline
What is manufacturing?
The production of goods on a large scale
What’s an assembly line?
A product moves through the factory while workers add parts to it
How did the assembly lines make life easier?
It made it easier by making products faster and cheaper
What is the positive affects of having machines and robots in assembly lines?
Things get made faster and mistake proof
What is a negative effect about robots in an assembly line?
People lost their jobs to the Machines
What are some examples of technology that changed the way people move from place to place?
Steam engines, safety bicycles, and airplanes
What is a negative effect of technology and transportation?
Air pollution
What was size of a the computer back then and what is the computer size now?
The computers used to be the size of an entire room and now they fit in your hand
What is a microchip?
A small piece of a computer that contains microscopic circuits
How did Microchip help make life easier?
It made it easier by making it possible for computers to process information very quickly and they also made the cost of buying a computer much lower
World wide web www.was not introduced until what year?
1990
