Variables

Monday LT: I will be able to identify types of variables within an experiment and explain why a P. O. E. are the foundation to science. CW: Observe a P. O. E. Make a P.O.E. foldable Make and answer a variables foldable. HW: Complete foldables at home if needed.

Why is P.O.E. the foundation to science? What does the P. stand for? What does the O. stand for? What does the E. stand for? Which letter is the hardest to actually do?

Tuesday LT: I will be able to identify types of variables within an experiment this means I understand all types of variables within an controlled experiment CW: Review P.O.E Make a variable foldable Answer a variables foldable. Make a Scientific Method foldable HW: Complete foldables at home if needed.

Why did the paper bag make a sound?

Why did the can imploid?

Scientific method vocab…. Any words a problem?

What is a variable in an experiment?

Variables A variable is anything that can change the outcome of an experiment. Control Group Constant Variable Independent Variable Dependent Variable

Wednesday LT:I will be able to comprehend the Scientific Method. This means I understand variables and how scientists organize their thinking when answering a problem or question. CW: Review variables, begin Scientific Method Foldable HW: Complete Tectonic Plate Pre-Test

Control group Is used in some experiments where the IV does not affect this group. Basically, NOTHING is done to this group to actually see if the IV does affect the other group as hoped. Example: Drinking whole milk makes kids fat. The IV is drinking whole milk and if a group of kids does not drink whole milk and still get fat then you can state whole milk is not the only contributor to weight gain.

Constant Variable The constant variable are the factors that are all kept the same… kept constant within the experiment. Example: Basketball Paper demo yesterday. The constant variables would have been the distant to the trash can, the thrower of the paper, the way the paper was thrown, the paper size, the condition of the room, etc….

Independent Variable This variable is the ONE changed variable within the experiment. Otherwise know as the manipulated variable. Example: In the basketball demo the type of paper would have been the one changed variable.

Dependent Variable This variable is the one that is in response to the independent variable. This variable is usually the MEASUREMENT, the results of the experiment. Example: In the basketball experiment the dependent variable would have been the number of baskets made with each paper.

LT: We are refreshing our understanding of variables LT: We are refreshing our understanding of variables. The purpose is to help us be able to design and conduct a scientific investigation. BTEC: I can explain variables within a controlled experiment. CW: Demos with science sentences for… Inverted glass The lifting paper Experiment with play-doe HW: Complete Pre-Test on Plate Tectonics

Warm-up you can discuss this with shoulder partners if needed Go through your vocabulary cards and write the meaning to the following words. Dependent variable Independent variable controlled variable/Constant variables Variables

Inverted glass Question: How does the amount of water affect the stay time of the index card? IV: DV: Constant variables:

The lifting paper IV: What was changed? DV: What did I measure? Constant variables? What remained the same?

Can Play-doe float? What did you change? Manipulate? Cause….. What did you measure? What is the IV? What is the DV? What were the constant variables?

Variable Demonstrations Demo 1) Demo 2) ( science sentence) ( science sentence) IV: IV: DV: DV: CV: CV: Experiment: Can Play-Doe Float? ( science sentence) IV: DV: CV:

P.O.E. What is it? Why is it so important to science? What are variables? IV? DV? CV?

Exit Ticket What is the most important variable within an experiment and why?

LT: We are refreshing our understanding of the scientific method LT: We are refreshing our understanding of the scientific method. The purpose is to help us be able to design and conduct a controlled scientific investigation. Today we will review the complete scientific method. CW: Review Exit Ticket Quality, Daily Catch goals, Grade pre-Test, and Scientific Method. HW: Work on your scientific method foldable in pencil….

So what is the scientific method? An organized way for scientists to find answers to problems or questions.

How does the scientific method go? Problem/Question Research to find knowledge to help answer the question Hypothesis Plan and Conduct and Experiment Analyze and Collect Conclusion

In your teams… try to describe how you write a problem or a question correctly. Make sure to discuss what is the IV and the DV.. Because you need these variables to write a proper question. Next try to describe how to write a proper hypothesis…. Remember to use the IV and the DV in your hypothesis…. And what are those three words ?

Plan and conduct…. How do you write a procedure? Remember from last year?

Analyze and Collect Data What is a data table? Where does the IV and the DV go? Where do you put the IV and the DV on the axis of a graph? What is a bar graph used for? What is a line graph used for?