An organized way of studying things and finding answers to questions. SCIENCE An organized way of studying things and finding answers to questions.

TYPES OF SCIENCE Each type of science is given a name to describe what is being studied.

TYPES OF SCIENCE Life science Physical science Earth science Space science Studies plants, animals, and other living things Studies energy, matter, and chemistry Studies the processes that shape the Earth The study of all things in the universe

TYPES OF SCIENCE

Organized method used to solve problems and answer questions EXPERIMENTAL DESIGN Organized method used to solve problems and answer questions

STATE THE PROBLEM Ask a question What are you trying to solve? Which color Life Saver dissolves the fastest?

GATHER INFORMATION Think about your own experiences with this topic Do research Who else studied this and what did they find out It has been my experience that I eat the green Life Savers faster than any other color

FORM A HYPOTHESIS Pose a testable explanation. What do you think is going to happen? Make an educated guess I think the green Life Saver will dissolve faster than any other color. I also think that purple will last the longest.

DESIGN AND PERFORM AN EXPERIMENT A set of steps to follow to test the hypothesis Observe and record all information Be sure to identify the controls, constants, and variables 1. give each test subject a different color Life Saver 2. each test subject puts the Life Saver in their mouths at the same time 3. record the time it takes for the candy to dissolve

CONTROLS AND CONSTANTS The standard to which the outcome of a test is compared What you measure against CONSTANTS The things that remain the same

VARIABLES Something in an experiment that is changed or measured The color of Life Savers was changed The time to dissolve was measured

VARIABLES INDEPENDENT VARIABLE What is changed or different What starts the experiment Can only be 1 DEPENDENT VARIABLE What is measured The result

EXTRANEOUS VARIABLES Unexpected or unpredictable events Improperly controlled experiment EX: the Life Saver lab

ANALYZE THE DATA Determine what the data means Make graphs and data tables

DRAW A CONCLUSION A logical answer to a question based on data and observations My data does not support my hypothesis, I said the green Life Saver would dissolve the fastest but the white one did. The purple Life Saver did last the longest.

If the hypothesis is supported The experiment needs to be repeated several more times The results need to be shared with the scientific community

If the hypothesis is not supported The results need to be shared with the scientific community The hypothesis needs to be revised and tested again

REVIEW TIME

What is Science? An organized way of studying things and finding answers to questions

What are the 4 basic types of Science? Life Physical Earth Space

What is the first step in designing an experiment? To state the problem or ask a question

What is a hypothesis? A testable explanation A prediction

What is a control? What you compare against

What are constants? Things that stay the same

How many variables can be tested at one time? 1

What is an independent variable? What is changed or tested

What is a dependent variable? The result What is measured

What is the easiest way to organize data? Graphs and charts

If your hypothesis is supported what do you do next? Repeat the experiment Share the results

If your hypothesis is not supported what should you do? Share your results Revise and retest