5 Written Questions

1. when a problem is either too big or too small to be tested easily
2. recognize the problem, form a hypothesis, test your hypothesis, analyze your data, draw conclusions, and communicate your results
3. a personal experience as seen through one of the senses, influenced by background knowledge and personal experiences
4. used to answer scientific questions by testing a hypothesis through the use of a series of carefully controlled steps
5. Possible interpretations of observations that are based on previous experience.

5 Matching Questions

1. for a scientist, what is the implication when new scientific information is discovered?
2. What are some similarities and differences between descriptive research and experimental research design?
3. What is the difference between an independent variable and a dependent variable?
4. identify the problem
5. model

1. a Descriptive research answers scientific questions through observation, while experimental research design answers scientific questions by testing a hypothesis through the use of a series of carefully controlled steps. They are similar because they are both the two methods used to answer questions.
2. b can be used if a problem is too big or too small to be tested easily
3. c the scientists view of the world will change and what they think about how to solve problems related to the new information.
4. d an independent variable is the factor that changes, and the dependent variable is the result or outcome being measured
5. e the first step a scientist would take to solve a problem

5 Multiple Choice Questions

1. a factor in the experiment that does not change
   1. model
   2. control
   3. constant
   4. science
2. because if there is no control, your experiment will not be valid. the control is just like any other experimental groups, except the independent variable is not applied to it.
   1. How is a control used in an experiment?
   2. Why are many constants needed?
   3. Why should bias be eliminated?
   4. When are models useful in science?
3. the accuracy of your caculations would be less accurate, then if only 1 variable changed at 1 time. If you change 1 variable to the experiment, then the project will change, and it will not be the same as when you started
   1. How is a control used in an experiment?
   2. for a scientist, what is the implication when new scientific information is discovered?
   3. What is the difference between an independent variable and a dependent variable?
   4. If 3 variables were changed at 1 time, what would happen to the accuracy of the conclusions made for an experiment?
4. so that you can make a true comparison between the factors in an experiment
   1. constant
   2. Why should bias be eliminated?
   3. When are models useful in science?
   4. Why are many constants needed?
5. lenglth- millimeters, centimeters, meters, and kilometers/ liqud volume- millileter, and liters/ mass- milligram, gram, kilograms, and tonne
   1. What are the S.I. units for length, liquid volume, and mass?
   2. Why are many constants needed?
   3. When are models useful in science?
   4. what are ways that science is part of your life?

5 True/False Question

1. science → can be used if a problem is too big or too small to be tested easily
   

   True        False

2. dependent variable → a factor in an experiment that the scientist changes
   

   True        False

3. tecnology → sample treated like other experimental groups except no independent variable is applied to it
   

   True        False

4. control → sample treated like other experimental groups except no independent variable is applied to it
   

   True        False

5. scientific methods → ways to solve problems that can include step-by-step plans, making models, and carefully throught-out experiments
   

   True        False