7G Science Test Ch1
Terms
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- inquiry
- Scientific ____________________ refers to the diverse ways in which scientists study the natural world and propose explanations based on the evidence they gather.
- Data
- the facts, figures, and other evidence gathered through observations
- SI
- International System of Units, (for the French, Systeme International d'Unites
- Hypothesis
- ba possible explanation for a set of observations or answer to a scientific question.
- dependent
- In a scientific experiment, the factor that may change in response to the manipulated variable is called the responding or ____________________ variable.
- Feedback
- information a system uses to monitor the input, process, and output so that the system can adjust itself to meet the goal.
- Kilo-
- k = 1,000
- Patent
- a legal document issued by a government that gives the inventor exclusive rights to make, use, or sell the invention for a limited time.
- Operational Definition
- a statement that describes how to measure a p[articular variable or define a particular term.
- Metric System
- a system of measurement based on the number 10
- Conclusion
- at least 5 sentences
- Linear graph
- a line graph in which the data points yield a straight line
- Trade-off
- an exchange in which one benefit is given up in order to obtain another benefit.
- Horizontal axis
- the X axis
- Scientific Inquiry
- the diverse ways scientists study the natural world and propose explanations based on the evidence they gather.
- Volume
- the amount of space an object takes up
- hypothesis
- Proposing an explanation for the changing colors of the sky is an example of a(n) ____________________.
- The US is the only Industrial Country that doesn't use _________
- the metric system
- Origin
- where X and Y intersect, coordinate (0,0)
- Goal
- purpose
- Graph
- a picture of your data
- Scientific Literacy
- means that you understand basic scientific terms and principles well enough that you can evaluated information, make personal decisions, and take part in public affairs
- government
- A patent is a legal document issued by a(n) ____________________.
- Deka-
- da = 10
- The graph used in science class
- line and bar graph
- Risk-benefit analysis
- evaluating the possible problems or risks, of a technology compared to the expected advantages or benefits.
- steepness
- Slope can also be described as the ____________________ of a graph line.
- Mass
- a measure of the amount of matter an object contains
- Scientific Theory
- a well-tested explanation for a wide range of observations or experimental results
- 10
- Each unit in the SI system is ____________________ times larger than the next smallest unit.
- Density
- a measure of how much mass is contained in a given volume
- Controlled Experiment
- an experiment in which only one variable is manipulated at a time
- Prototype
- a working model used to test a design.
- Engineer
- a person who is trained to use both technological and scientific knowledge to solve problems.
- Data point
- a point on a graph for each piece of data
- Vertical axis
- the Y axis
- All systems have:
- Goal, Input, Process, Output, and Feedback.
- Slope
- how much y changes for every change in x
- society
- A group of people who live together in an area and have certain things in common make up a(n) ____________________.
- Nonlinear graph
- a line graph in which the data points do not fall along a straight line
- Meniscus
- the top surface of the water in a cylinder that is curved6
- Scientific revolution
- historical changes in thought & belief, to changes in social & institutional organization, that unfolded in Europe between roughly 1550-1700
- Obsolete
- A product that is no longer used is said to be
- Weight
- a measure of the force of gravity acting on an object
- Centi-
- c = 0.01
- rules
- You should make sure you know the ____________________ and use of safety equipment in the lab.
- Responding Variable
- the factor that may change in response to the manipulated variable
- Technology
- how people change the world around them to meet their needs or to solve a problem
- Scientific Law
- a statement that describges what scientists expect to happen every time under a particular set of conditions
- Process
- a swquence of actions that the system undergoes.
- Density formula
- Density = Mass / Volume
- Constraint
- any factor that limits or restricts a design
- Deduction
- reasoning from the general to the specific
- scientific literacy
- By having ____________________, you will be able to identify good sources of scientific information, evaluate them for accuracy, and apply the knowledge to questions or problems in your life.
- Line of best fit
- a line between data points that reflect the general pattern. It may not touch any data points but is the best fit among the points.
- Milli-
- m - 0.001
- Troubleshooting
- Identifying the cause of any problems in a design is an example of
- The three main types of graphs are the line graph, the bar graph, and the circle or pie graph.............
- line graph, bar graph, and pie graph
- redesign
- After troubleshooting problems with a product, engineers ____________________ it.
- Output
- a result or product generated from a process
- needs
- Technology changes the world to meet human ____________________.
- model
- A virtual ____________________ of a product may be tested using computers.
- Hecto-
- h = 100
- Coordinate
- a pair of numbers used to determine the position of a data point on a graph
- System
- A group of parts that work together is called a
- Brainstorming
- a process in which group members freely suggest any creative solutions that come to mind.
- Deci-
- d = 0.1
- Input
- something that is put into a system in order to reach a goal
- Scientific Inquiry Format
- Problem, Hypothesis, Materials, Procedures, Results, Conclusions
- Manipulated Variable
- the one variable that is purposely changed to test a hypothesis