Unit 1 NOS Study Guide

What is the difference between an OBSERVATION and an INFERENCE?

• An observation is something you see, feel, touch, smell or taste and an inference is a guess based on an observation

• An inference is something you see, feel, touch, smell or taste and an observation is a guess based on an observation

What is a PREDICTION?

• When you describe what you see, feel, touch, smell, or taste

• a guess based on an observation

• If you explain what might happen in the FUTURE

Tags

NGSS.MS-ESS2-5

What is the difference between a TESTABLE and a NON-TESTABLE question?

• A testable question can be answered by doing a controlled experiment, but a non-testable question CANNOT be answered with an experiment (it may be too broad, based on opinion, or answered by research only)

• A non-testable question can be answered by doing a controlled experiment, but a testable question CANNOT be answered with an experiment (it may be too broad, based on opinion, or answered by research only)

• Testable questions are done with an investigation and non-testable questions are done with an experiment.

Tags

NGSS.MS-PS2-2

What is the difference between an INDEPENDENT VARIABLE (IV) AND A DEPENDENT VARIABLE (DV)?

• Controlled Variable is the one thing I CHANGE in the experiment, or the CAUSE, but the

  Dependent variable is the data that is MEASURED at the end, the EFFECT.

• Independent variable is the EFFECT and the dependent variable is the one thing I change.

• Independent Variable is the one thing I CHANGE in the experiment, or the CAUSE, but the dependent variable is the data that is MEASURED at the end, the EFFECT.

• They both deal with experiments and are the same thing. The controlled variables are the only thing you should focus on in an experiment.

Tags

NGSS.MS-PS2-2

What is a CONTROLLED EXPERIMENT?

• A controlled experiment is a test where MANY variables are changed at a time.

• A controlled experiment is when observations are made and data is collected in a data table.

• A controlled experiment is not truly ever something that can be done because there are too many variables to consider.

• A controlled experiment is a test where only ONE variable is changed at a time.

Do experiments have ONE or MANY CONSTANTS (things that stay the same)?

• Experiments have NO constants.

• Experiments have one constant.

• Experiments have MANY constants.

• Experiments have 2 constants.

What is the difference between a QUALITATIVE and a QUANTITATIVE observation?

• A quantitative observation describes what something is LIKE. A qualitative observation uses NUMBERS and measurements.

• A qualitative observation describes what you see. A quantitative observation uses what you smell.

• A qualitative observation describes what something is LIKE. A quantitative observation uses NUMBERS and measurements.

• A qualitative observation describes what something is LIKE. A quantitative observation uses guesses and predictions.

What is the difference between REPLICATION and REPETITION?

• Repetition- a second scientist COPIES your experiment to see if it is valid; Replication - REPEAT - you REPEAT your OWN experiment multiple times

• ___Replication - copyCAT - a second scientist COPIES your experiment to see if it is valid; Repetition - REPEAT - you REPEAT your OWN experiment multiple times

• ___Replication - performing your experiment over and over until you test your hypothesis as correct; Repetition - REPEAT - you REPEAT your OWN experiment multiple times

• Repetition- performing your experiment over and over until you test your hypothesis as correct; Replication - REPEAT - you REPEAT your OWN experiment multiple times

What is SCIENCE?

• Science is observing the world, learning facts, making graphs and data tables.

• Science is doing experiments and doing research on a computer to support your experiments.

• Science is doing experiments to test to see if your hypothesis is true.

• Science is knowledge about the natural world based on facts learned through experiments and observations.

Tags

NGSS.MS-LS1-5

NGSS.MS-PS1-2

What is the correct way to write a HYPOTHESIS (What words should you use in your statement)?

• If __I do this___, THEN __because___

• I predict that…

• I observe…

• If I observe and predict...