Scientific Investigation & Models
This is the broad process scientists use to answer questions about the natural world; not every investigation is this kind of test.
What is a scientific investigation?
This common graph uses bars to compare amounts in different groups.
What is a bar graph?
This is a test model of a product.
What is a prototype?
This is the use of tools, machines, materials, and processes to meet human needs.
What is technology?
These people ask questions about the natural world and help contribute to science.
Who is anyone who asks scientific questions?
Findings from an experiment are generally not accepted until other scientists have done this and confirmed the results.
What is replication?
This graph is often best for showing how a measurement changes over time.
What is a line graph?
This is the first step of the engineering design process: engineers figure out what needs to be solved.
What is identifying a need?
This everyday item is a simple technology: a toothbrush, washing machine, knife, or spoon
What is a washing machine?
Scientists need these three traits: curiosity, creativity, and this ability to find solutions to challenges.
What is good problem-solving ability?
This type of model can be touched, like a small-scale model of a bridge.
What is a physical model?
This variable is usually placed on the y-axis and changes in response to another variable.
What is the dependent variable?
After identifying a need, engineers do this before brainstorming solutions.
What is conducting research?
This is the advanced technology among these choices: hair dryer, microwave, hair brush, or satellite.
What is a satellite?
Improvements in medicine, new technology, and more diverse food sources show science’s impact on this.
What is society?
This type of model uses an equation to represent an object or process.
What is a mathematical model?
This variable is usually placed on the x-axis and is changed or selected by the investigator.
What is the independent variable?
Engineers build this to try out a design before settling on a final product.
What is a prototype?
This is the item that is not considered a type of technology: an idea, a process, a product, or a system.
What is an idea?
T/F
Only Scientist can contribute to testing scientific theories and concepts?
What is False, Citizens can collect data, make observations, and share information that scientists use in their research.
A visual or mathematical representation of an object or process is called this.
What is a model?
You record a baby’s weight once each month for six months and want to show how it changes over time. This graph is the best choice.
What is a line graph?
Put these steps in order: build a prototype; identify a need; communicate results; research; test, evaluate, and redesign; brainstorm and select solutions.
What is the order: identify a need, conduct research, brainstorm and select solutions, build a prototype, test/evaluate/redesign, and communicate results?
Engineers apply science and mathematics to solve real-life problems. This field is their name for doing that.
What is engineering?
These three qualities help engineers solve real-world problems:
What are the ways engineers use creative thinking, methodical thinking, and science, math, and technology skills?