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# Chapter 1 7 th Grade Science Introduction to Life Science.

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Chapter 1 7 th Grade Science Introduction to Life Science

Skills of Science _______ - a way of learning about the natural world. _________ - study of living things - ________ Skills: – __________ – _____________ Science observing inferring Predicting Classifying Making Models Life Sciencebiology

Observing _________ - using one or more of your senses to gather information __________________ - include numbers or amounts, measurements. __________________ - descriptions that cannot be expressed in numbers. – Color- texture – Sour / sweet observing Quantitative observations Qualitative observations

Inferences ________ - when you explain or interpret the things that you observe. _________ - based on reasoning from what you already know. Inferences are NOT: – ____________ – _____________ inferring Inferences Wild guesses Always correct

Predicting ___________ - a forecast of what will happen Predictions are NOT ____________ Predictions are based on _____________ or _________ ____________ - an attempt to explain what __________ or ____________ ____________ - a forecast of what _________ Predicting Always correct Past experience Evidence Inference Is happening Has happened Predictionwill happen

Math Analyze the Data – pg 9

Classifying / Making Models _________ - the process of ________ things together that are alike. Classifying objects helps to stay _________ so that the objects can easily be ______ and ______ later. _____________ - creating representations of ____________ or __________ – Help to understand things that cannot be ___________ directly Classifyinggrouping organized found used Making Models Complex ObjectsProcesses observed

Scientific Inquiry ___________ - different ways that scientists use to study the natural world. – Ongoing process of _______ in science – First step in scientific inquiry is ___________!!!! – Other habits of mind include: _______- reporting observations truthfully ______________ - accepting new and different ideas _________ - doubtful about information presented with out evidence ________-coming up with new ways to solve problems Scientific Inquiry discovery CURIOUSITY Honesty Open-mindedness skepticism creativity

Process of Inquiry The process that scientists use to solve problems include: – ________________ – _________________ – ______________________ – _______________ – _______________________ Posing a Question Developing a hypothesis Designing an experiment Collecting and interpreting data Drawing conclusions Communicating ideas and results

Posing a Question Scientific Inquiry cannot answer questions based on _________, _________, or _________!!!!! Scientific questions can be answered by ______________, ___________, and __________________ – Is running a better sport than swimming? – Does running make your muscles stronger than swimming? Scientific Inquiry based question!!! – Which brand of running shoes looks best? opinionsvaluesjudgments Making observationsCollecting data Providing supporting evidence

Developing a Hypothesis Scientific Inquiry moves forward when ______ can be _________. __________ - possible ________ to a scientific question or an __________ for a set of _________. Hypothesis is NOT a _____ - one possible way to answer a question Hypothesis must be _________ by _________ or ___________!!!! Many ________ are needed before a hypothesis can be accepted as true ideas tested hypothesisanswer explanation observations fact TESTABLEOBSERVATION EXPERIMENT trials

Designing an Experiment / Variables _______ - factors that can change in an experiment In a well designed experiment only ONE variable is PURPOSELY changed!!!! ________________ or _______________ - the variable that is CHANGED!!! ________________ or _______________ - the variable that is expected to change because of the manipulated variable. ______________ - statement that defines how to measure a variable or define a term variables Manipulated VariableIndependent Variable Responding VariableDependent Variable Operational Definition

Controlled Variables / Experiment To be sure that changes in the _____________ are causing the changes in the ______________, scientists ONLY change ONE variable at a time. ALL other variables are kept ________ = _______ _______________ - an experiment in which ALL variables except ONE are kept constant Manipulated Variable Responding Variable Controlled Constant Controlled Experiment

Collecting Data _______ - the facts, figures, and other evidence gathered through observations _________ - an organized way to collect and record observations ___________ = qualitative or quantitative ________ = qualitative or quantitative Qualitative data – recorded in a _______ or _____ data Data table observations data journal Log

Quantitative Data / Interpreting data Scientists make it easier to _______ quantitative data by using the same system of measurement called the __________________ - meters, grams, liter, Celcius Skills Handbook – Page 808-809 After data is collected it must be _________ or _______ - graphs reveal ______ or _______ share International System of Units (SI) interpreted explainedtrendspatterns

Conclusions / Communicating After scientists _________ their data, they draw a _______ about their _______. __________ - states whether or not the ______ support the __________ ____________ - sharing ideas and conclusions with others through _________ or ________ Others can ______ the experiment to check the ______ interpret conclusionhypothesis conclusion datahypothesis Communicating speaking writing repeat results

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