Life Science Chapter 1 Review What is Life Science?

What is the diverse ways in which scientists study the natural world and propose explanations based on evidence they gather? (Text page 18)

Scientific inquiry

Also known as an educated prediction. A possible explanation for a set of observations or answer to a scientific inquiry that must be testable. Also known as an educated prediction. (Text page 19)

Hypothesis

A statement that describes how to measure a particular variable or how to define a particular term?

Operational definition

What are safety symbols used for in a laboratory?

Safety symbols used in a laboratory and or in printed procedures are to warn of possible dangers such as poisonous chemical or electrical shock.

(Blanks are different words) Scientific inquiry often begins with a __________ or __________ about an observation. (Text page 19)

Scientific inquiry often begins with a problem or question about an observation. Questions that are posed can be answered through an investigation.

Quantitative observations Qualitative observations Define the following: Quantitative observations Qualitative observations (Text page 7)

Quantitative observations deal with a number or amount Quantitative observations deal with a number or amount. (example: Eight e-mail in you inbox.) Qualitative observations deal with descriptions that cannot be expressed in numbers. (example: A grape tastes sour.)

Why would it be important to graph your data in a scientific inquiry? (Text page 21)

A graph can help you interpret data by revealing patterns and trends in the data.

Define the following: Predicting Inferring (Text pages 8-9)

Predicting: The process of forecasting what will happen based on past experience or evidence. Inferring: The process of making an inference, interpretation based on observation and prior knowledge. (Inference - determine a conclusion by reasoning.)

Define the following: Classifying Making models (Text page 10-11)

Classifying is the process of grouping together items that are alike in some ways. Making models involves creating representation of complex objects and processes.

When using one or more of your five senses (sight, hearing, taste, touch, and smell) in a scientific inquiry to gather information, it is called ____________. (Text page 7)

Observing

In class when conducting a scientific inquiry and an accident occurs, what should you do?

Immediately go to your teacher and tell him or her!

Why would it be important to know how to use the lad equipment in a scientific inquiry?

It is always good laboratory preparation to know how to use the equipment.

Variable Manipulated variable Responding variable Define the following: Variable Manipulated variable Responding variable (Text page 20)

Variable: A factor in an experiment that can change. Manipulated variable: The one factor that a scientist changes during an experiment; also called the independent variable. Responding variable: The factor that changes as a result to the manipulated, or independent variable in an experiment; also called the dependent variable.

(Both blanks are the same word) A __________ is part of the experiment to which you can compare the results of the other tests. In the __________, the conditions are the same except for the manipulated variable. (Text page 20)

Control

Define the following: Conclusion

A conclusion is a summary of what you have learned from an experiment. In drawing your conclusion, you should ask yourself whether the data support the hypothesis. You also need to consider whether you collected enough data. After reviewing the data, you decide that the evidence supports your original hypothesis.

What are the six major stages of the scientific inquiry?

Ask a question Do background research Construct a hypothesis Test your hypothesis by doing an experiment Analyze your data and draw a conclusion Communicate your results

You are a scientist. After completing a scientific inquiry, name as many ways you could communicate your results to other scientists. (Text page 21)

Lectures at scientific meetings Publish articles in journals Internet