What is Science?

Competency Goal 1: The learner will design and conduct investigations to demonstrate an understanding of scientific

inquiry.. – 1.03 Apply safety procedures in the laboratory and in field studies:

• Recognize potential hazards. • Manipulate materials and equipment. • Conduct appropriate procedures.

– 1.05 Analyze evidence to:• Explain observations. • Make inferences and predictions. • Develop the relationship between evidence and explanation.

– 1.06 Use mathematics to gather, organize, and present quantitative data resulting from scientific investigations:

• Measurement. • Analysis of data. • Graphing. • Prediction models.

– 1.08 Use oral and written language to:• Communicate findings. • Defend conclusions of scientific investigations.

– 1.09 Use technologies and information systems to:• Research. • Gather and analyze data. • Visualize data. • Disseminate findings to others.

– 1.10 Analyze and evaluate information from a scientifically literate viewpoint by reading, hearing, and/or viewing:

• Scientific text. • Articles. • Events in the popular press.

What is SCIENCE?

There are several correct answers to this question; list as many as you

can.

• A way to answer questions & solve problems• How we understand the world around us• A way or process used to investigate what is

happening around you• It provides possible answers

What is SCIENCE?

We answer scientific questions & solve problems

with 2 types of research. What are the two types?

We answer scientific questions and solve problems

with 2 types of research. What are the two types?

1.Descriptive Research

2.Experimental Research

Describe DESCRIPTIVE RESEARCH

• Based mainly on Observations

• Used when experiments are impossible to perform

• Involves the following:– Stating the research objective– Describing the research design– Eliminating bias

Describe DESCRIPTIVE RESEARCH

Describe EXPERIMENTAL RESEARCH

Describe EXPERIMENTAL RESEARCH

Experimental research includes investigations that:

• Have variables• Test hypotheses• May have a control or control group• Is a set of planned steps• Tests one variable at a time

Describe VARIABLE

Describe VARIABLE

A part of an investigation that can be CHANGED

List the 3 TYPES OF VARIABLES

List the 3 TYPES OF VARIABLES

1.Independent Variable

2.Dependent Variable

3.Controlled Variable

ExplainINDEPENDENT VARIABLE

ExplainINDEPENDENT VARIABLE

• The variable that can be changed during an experiment

• The variable that the scientists chooses to change

• The variable that may cause a change in the dependent variable

ExplainDEPENDENT VARIABLE

ExplainDEPENDENT VARIABLE

•The factor that is being measured in an experiment

•The variable that is measured by scientists

•The variable that may change because of the independent variable

ExplainCONTROLLED VARIABLE

(CONSTANT)

ExplainCONTROLLED VARIABLE

(CONSTANT)

•Variable that stays the same during an experiment

•Variable that is controlled by the scientist

•Variable that is not allowed to change

What is the difference between

Science and Technology?

What is the difference between

Science and Technology?

Technology is the application of science;

Science gaining knowledge

Technology using knowledge

How do scientists OBSERVE?

How do scientists OBSERVE?

Using the 5 senses:

•Hearing

•Touch

•Smell

•Sight

•Taste

Explain how to RECORD DATA

Data Tables

• A way to record results and observations accurately

• Have a descriptive title

• Divided into columns & rows

• Shows the independent variable

• Provides a place to record the dependent variable

Explain how to RECORD DATA

How do scientists COMMUNICATE the results of

their work?

• Reported in scientific journals

• Science journals

• Presentations to other scientists

How do scientists COMMUNICATE the results of

their work?

Describe how to ANALYZE DATA

• Reduce the data with the best measure of central tendency

• Graph the data

• Look for patterns and relations

• Look at the shape of the graph

Describe how to ANALYZE DATA

What do scientists do when they

DRAW CONCLUSIONS?

What do scientists do when they

DRAW CONCLUSIONS?

• Answer the original question

• State whether or not the hypothesis was supported (it is never “right” or “wrong”)

• Pose questions for further research

Define HYPOTHESIS

Define HYPOTHESIS

• A statement that can be tested by conducting an experiment

• Prior knowledge, new information, observations can be used to form a hypothesis

Why are REPEATED TRIALS necessary in an experiment?

Why are REPEATED TRIALS necessary in an experiment?

• To make sure results are valid

• The more trials conducted, the more likely the results are reliable

• To make sure a “fluke” is not considered the true result

Why do scientists use MODELS?

Why do scientists use MODELS?

To save time and money when testing ideas that are

• Very large

• Very small

• Dangerous

• Time-consuming

When are GOGGLES required?

When are GOGGLES required?

When using

• Chemicals

• Heat

• Sharp objects

Explain the Science Department Late Work Policy

Explain the Science Department Late Work Policy

10 points will be taken off each day it is late!

What is the PROCEDURE for the Start of Class?

What is the PROCEDURE for the Start of Class?

• Come into the room and sit in your assigned seat.

• Read the AGENDA and copy assignments into your agenda. The agenda is located on the white board to the left of the door.

• Read the instructions of the overhead projector and follow the directions.