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ScienMethod & Graph

8th Grade Unit 3

What was the medieval science of chemistry called? Alchemy
The medieval science that was a forerunner of chemistry Alchemy
The tendency to see what we want to see, or interpret data according to expectations, and build scotomas to other data Bias
A field of science that studies MATTER (and how it is changed due to energy) Chemistry
A variable that is kept the same for all groups in an experiment Constant
A group in an experiment that is used for comparison. Control
The variable in an experiment that is changed depending on the value of the other variable. Dependent variable
The branch of science that studies earth and space Earth Science
These test a hypothesis by investigating the effect of one variable on another in a controlled environment. Experiments
These are used to better "see" relationships in science. Graphs
A possible, testable solution to a problem in science, based on research and observation Hypothesis
The variable in an experiment that is adjusted or changed by the experimenter. Independent variable
The branch of science that studies living things Life Science
Used in science to represent ideas or objects that are too large or complex, so that people will understand it better Model
The branch of science that studies matter and energy. Physical Science
The field of science that studies ENERGY (and the effect it has on matter) Physics
Based on the Latin word SCIENTIA, which means "knowledge" Science
The organized set of procedures followed by scientist to investigate the natural world. Scientific Method
A rule or principle that describes WHAT happens in nature Scientific Law
The application of science to help people Technology
An explanation of HOW or WHY something happens, based on repeated observations and experiments. Theory
Something that is subject to change Variable
When one variable increases as the other increases, and produces a straight line sloping up, we say they are ____proportional directly
If two variables are indirectly proportional, one goes down as the other goes up, and the line produced slants Downward
The type of graph usually used when comparing the change in one variable with the change in another is a Line graph
Which type of graph is used to "see" percentages? A circle or pie graph
This type of graph is used when "counting" data. A bar graph
On a data table, the first column represents the Groups or Trials
On a data table, what variable is placed in the 2nd column? The independent variable
On a data table, where do we record the data gathered on the dependent variable? The third column.
What are some ways scientists can reduce bias in their experiments? They can repeat the experiment, or ask another person to repeat the experiment.
What are 3 ways a scientist uses to investigate nature? Observation, experimentation, modeling
How does an observation differ from an inference? Observations are made with the 5 senses. Inferences are guesses based on knowledge or past experience.
What are the most commonly listed steps of the Scientific Method? State the Problem Form a Hypothesis Test the Hypothesis(Experiment) Analyze Data (Charts or Graphs) Form a Conclusion Repeat the experiment(to reduce bias)
If an experiment recorded a cricket's chirps at different temperatures, what might you title a graph for that experiment. Temperature vs Chirps Crickets' Chirps at Varying Temperatures How does Temperature Affect the Rate of Cricket's Chirping? (Include both variables in the title.
Know how to construct and read a line graph Remember, you must always include a Title, label the x-axis and the y-axis, and number each axis. You must also draw a smooth line for the graph (DO NOT CONNECT THE DATA POINTS)
Created by: judi829