SC.7.N.1.2

Differentiate replication (by others) from repetition (multiple trials).
General Information
Subject Area: Science
Grade: 7
Body of Knowledge: Nature of Science
Idea: Level 2: Basic Application of Skills & Concepts
Big Idea: The Practice of Science -

A: Scientific inquiry is a multifaceted activity; The processes of science include the formulation of scientifically investigable questions, construction of investigations into those questions, the collection of appropriate data, the evaluation of the meaning of those data, and the communication of this evaluation.

B: The processes of science frequently do not correspond to the traditional portrayal of "the scientific method."

C: Scientific argumentation is a necessary part of scientific inquiry and plays an important role in the generation and validation of scientific knowledge.

D: Scientific knowledge is based on observation and inference; it is important to recognize that these are very different things. Not only does science require creativity in its methods and processes, but also in its questions and explanations.

Date Adopted or Revised: 02/08
Date of Last Rating: 05/08
Status: State Board Approved
Assessed: Yes
Test Item Specifications
  • Item Type(s): This benchmark may be assessed using: MC item(s)
  • Also Assesses
    SC.6.N.1.2Explain why scientific investigations should be replicable.

    SC.6.N.1.4 Discuss, compare, and negotiate methods used, results obtained, and explanations among groups of students conducting the same investigation.

    SC.8.N.1.2 Design and conduct a study using repeated trials and replication.

  • Clarification :
    Students will differentiate between replication and repetition.

    Students will explain why scientific investigations should be replicable.

    Students will compare methods and/or results obtained in a scientific investigation.

    Students will evaluate the use of repeated trials or replication in a scientific investigation.
  • Content Limits :
    None specified
  • Stimulus Attributes :
    None specified
  • Response Attributes :
    None specified
  • Prior Knowledge :
    Items may require the student to apply science knowledge described in the NGSSS from lower grades. This benchmark requires prerequisite knowledge from SC.3.N.1.2, SC.3.N.1.5, SC.4.N.1.2, SC.4.N.1.5, SC.5.N.1.3, and SC.5.N.2.2.
Sample Test Items (1)
  • Test Item #: Sample Item 1
  • Question:

    The following statements were taken from the procedures of four different investigations.

    the statement from which investigation is an example of repetition?
  • Difficulty: N/A
  • Type: MC: Multiple Choice

Related Courses

This benchmark is part of these courses.
2002070: M/J Comprehensive Science 2 (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
2002080: M/J Comprehensive Science 2, Advanced (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
2001010: M/J Earth/Space Science (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
2001020: M/J Earth/Space Science, Advanced (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
2000010: M/J Life Science (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
2000020: M/J Life Science, Advanced (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
2003010: M/J Physical Science (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
2003020: M/J Physical Science, Advanced (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
7820016: Access M/J Comprehensive Science 2 (Specifically in versions: 2014 - 2015, 2015 - 2018, 2018 and beyond (current))
2002085: M/J Comprehensive Science 2 Accelerated Honors (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
2003030: M/J STEM Physical Science (Specifically in versions: 2015 - 2022, 2022 and beyond (current))
2002200: M/J STEM Environmental Science (Specifically in versions: 2015 - 2022, 2022 and beyond (current))
2001025: M/J STEM Astronomy and Space Science (Specifically in versions: 2015 - 2022, 2022 and beyond (current))
2000025: M/J STEM Life Science (Specifically in versions: 2015 - 2022, 2022 and beyond (current))

Related Access Points

Alternate version of this benchmark for students with significant cognitive disabilities.
SC.7.N.1.In.2: Recognize the relationship between the end product (dependent variable) and in the input (independent variable) in an experiment.
SC.7.N.1.Su.2: Recognize what is tested in a simple experiment (dependent variable).
SC.7.N.1.Pa.2: Recognize observable changes in a simple experiment, such as plant growth.

Related Resources

Vetted resources educators can use to teach the concepts and skills in this benchmark.

Lesson Plans

Whirligig – The Importance of Repetition and Replication in Experiments:

Students write a procedure and conduct an investigation that helps them to differentiate replication from repetition. Students drop the whirligig 3-5 times and record how long it takes to fall to the ground.

Type: Lesson Plan

Repetition and Replication Made Easy:

This is a simple hands-on activity which will help students understand the difference between repetition and replication. It is designed to be science notebook friendly.

Type: Lesson Plan

The Real Thing?:

This is a hands-on (write it, read it, do it) activity to help students master the standard

The learning objectives of this lesson are that the students will demonstrate that replication is the ability to make an exact copy, explain the importance of writing and following precise directions and differentiate replication by others and repetition (multiple trials) and its importance in science. There is an engaging activity, PowerPoint, YouTube video, and much more to help the students understand and know the difference between replication and repetition.

Type: Lesson Plan

Survival Journal Part Three: Surviving the Epidemic: Planting Tomatoes:

This is a detailed lesson based on the germination of seeds, science vocabulary of plants, diseases, and insect infestations with tomato plants. Tomatoes grow nutrients that the human body needs to survive. It is a companion lesson to: Survival Journal Parts 1 and 2 available on CPALMS.

Type: Lesson Plan

How far or fast can you roll a Tennis ball?:

Repetition requires the experiment to be repeated at least three times and replication requires the experiment to be conducted by another researcher. Repetition and replication ensures that experiments and experimental results are valid.

Type: Lesson Plan

How Many Hoops Can You Make?:

Students create their own examples using basketball to differentiate between repetition and replication.

Type: Lesson Plan

Original Student Tutorial

Repetition and Replication:

Learn to differentiate replication (by others) from repetition (multiple trials) in experimental design through the information and practice exercises in this interactive tutorial.

Type: Original Student Tutorial

Perspectives Video: Experts

Statistical Sampling Results in setting Legal Catch Rate :

Fish Ecologist, Dean Grubbs, discusses how using statistical sampling can help determine legal catch rates for fish that may be endangered.

Download the CPALMS Perspectives video student note taking guide.

Type: Perspectives Video: Expert

fMRI, Phantom Limb Pain and Statistical Noise:

Jens Foell discusses how statistical noise reduction is used in fMRI brain imaging to be able to determine which specifics parts of the brain are related to certain activities and how this relates to patients that suffer from phantom limb pain.

Type: Perspectives Video: Expert

Testing New Designs: F-15 Experimental Aircraft:

F-15 Experimental Test Pilot discusses the importance of the iterative process of collecting data, analyzing data and communicating the findings when developing aircraft for the United States Air Force.

Download the CPALMS Perspectives video student note taking guide.

Type: Perspectives Video: Expert

Perspectives Video: Professional/Enthusiasts

Determining Remote Locations with Math:

Ecologist, Rebecca Means, describes the process of determining remote locations in the USA and developing quantitative questions that are appropriate.

Download the CPALMS Perspectives video student note taking guide.

Type: Perspectives Video: Professional/Enthusiast

Sampling Amphibian Populations to Study Human Impact on Wetlands:

Ecologist Rebecca Means discusses the use of statistical sampling and comparative studies in field biology.

Type: Perspectives Video: Professional/Enthusiast

Perspectives Video: Teaching Idea

Quadrat Sampling M&M Lesson:

This teacher explains how a 3D-printed quadrat can be used with an M&M sampling lesson to engage students when they explore how to use data from a random sample to draw inferences about a population.

Type: Perspectives Video: Teaching Idea

Teaching Idea

Cool Shapes-A SeaWorld Classroom Activity:

Students will investigate how the shape and volume of body forms affect heat loss.

Type: Teaching Idea

Text Resource

Electronics May Confuse a Bird's "Compass":

This informational text resource is intended to support reading in the content area. Scientists are finally able to support the hypothesis that electromagnetic radiation from human electronic equipment can confuse a bird's sense of direction; the radiation impacts the orientation necessary for birds' migration. When shielded by an aluminum screen (a Faraday cage), this interference is eliminated and birds can orient themselves properly.

Type: Text Resource

Original Student Tutorials Science - Grades K-8

Repetition and Replication:

Learn to differentiate replication (by others) from repetition (multiple trials) in experimental design through the information and practice exercises in this interactive tutorial.

Student Resources

Vetted resources students can use to learn the concepts and skills in this benchmark.

Original Student Tutorial

Repetition and Replication:

Learn to differentiate replication (by others) from repetition (multiple trials) in experimental design through the information and practice exercises in this interactive tutorial.

Type: Original Student Tutorial

Parent Resources

Vetted resources caregivers can use to help students learn the concepts and skills in this benchmark.