Homework

1st period will have homework over fractions and division.

Homeroom will have homework over Integers and Rational Numbers.

Both classes have a science vocabulary test on Friday. The study guide is below.

Chapter 1 Study Guide

  1. Cost- an undesirable result of either taking or not taking an action.
  2. Benefit- a desirable result of either taking or not taking a certain action.
  3. Field- any area outside of a science laboratory where scientific investigations are being conducted.
  4. Safety symbols- these are signs that alert you to possible sources of accidents in a science lab.
  5. System- a group of parts that work together to perform a function or produce a result.
  6. Input- the material or energy that goes into a system.
  7. Process- this is what happens in the system.
  8. Output- the material or energy that comes out of the system.
  9. Feedback- output that changes the system in some way.
  10. 10.Model- a representation of a simple or complex object or process.
  11. 11.Data- the facts, figures and other evidence gathered through qualitative and quantitative observations.
  12. 12.Controlled experiment- an experiment in which only one variable is changed at a time.
  13. 13.Variable- a factor that can change in an experiment.
  14. 14.Independent variable- the one variable that is purposely changed to test a hypothesis.
  15. 15.Dependent variable- the factor that may change in response to the independent variable.
  16. 16.Hypothesis- a possible answer or an educated guess to a scientific question.
  17. Scientific inquiry- the diverse ways in which scientists study the natural world and give explanations based on the evidence they gather.
  18. Scientific investigation- the way in which scientists study the natural world.
  19. Evaluating- comparing observations and data to reach a conclusion about a scientific investigation.
  20. Predicting- making a statement or a claim about what will happen in the future based on past experiences or evidence.
  21. Classifying- the grouping together of items that are alike in some ways.
  22. Inferring- when you explain or interpret the things you observe.
  23. Observing- using one or more of your senses to gather information.
  24. Qualitative observation- an observation that deals with characteristics that cannot be expressed in numbers.
  25. Quantitative observation- an observation that deals with a number or amount.