Do Now:Identify

what’s wrong with these pictures.

Do Now• Identify the following pieces of lab equipment.

1 2 3

4 5 6

Objectives

• SWBAT review the safety rules.• SWBAT identify the steps to the scientific

method.• SWBAT create an experiment with the

proper parts of the scientific method.

The Scientific Method

• Music Video:

https://www.youtube.com/watch?v=jPaGOHwv7mQ

The Scientific Method1. Identify the problem- observe and ask questions.

2. Research and form a hypothesis

3. Test your hypothesis- experimentation

4. Collect and record DATA

5. Conclusion- Analyze your data and determine if your hypothesis was correct or incorrect.

1. Observe and ask Questions

All scientists make observations that lead to different questions, without these questions we can’t experiment and without experimentation we wouldn’t have ANYTHING!

What is an observation?

• Let's make some observations about what is in the classroom right now...

Observations vs. Inferences

Observation- direct way of gathering information in an organized way.

Inference- taking observations and making a logical conclusion

Lets do some practice!• Make a list of observations in your notebook

as you watch this scene from Emperor’s New Groove

• https://www.youtube.com/watch?v=JhWZIyJB-4U

Lets draw some inferences from our observations…

Observation Inference

Do NowUse the following picture and list:

3 observations and 1 inference

Objectives

• SWBAT identify the steps of the scientific method.

• SWBAT create a hypothesis.• SWBAT practice measuring and using

scientific equipment.

2. Forming a Hypothesis

Hypothesis - a testable explanation of a situation• Hypothesis that are supported through

multiple experiments and data are then accepted in the scientific community.

Usually written in an “if… then” statement.– Example:

• If salt is added to water that is being heated then the water will boil at a faster rate.

Two groups of 100 people were testing to see if a new pill would help people lose weight. One group was given the actual pill while the other group was given a placebo. Both groups took the pill 1 time a day for six months total.

1.Write a hypothesis for this experiment.2.List 3 controls/constants that were kept the same between group A and group B.

Objectives

1. SWBAT define and identify the independent variable, dependent variable, experimental group, and control group in different experiments.

2. SWBAT compare and contrast qualitative and quantitative data.

3. SWBAT complete a worksheet on the scientific method.

3. Controlled Experiments Independent variable: variable that changes

Dependent variable: results from or depends on changes to the independent variable

Experimental Group: group that is being changed

Control Group: group you keep the same (all variables constant)

Do Now:Identify the components of the experiment

A group of college students were given a short course in speed-reading. The instructor was curious if a reward would influence how fast

students could take a reading test at the end of the course. Half the students were offered $5

for obtaining a certain time on the test, the other half were not offered money.

• Independent Variable:• Dependent Variable:• Experimental Group:• Control Group:

Identify: control group, experimental group, independent variable, dependent variable, & constants

Yankee Candle designers want to increase the time their candles burn for. They made a new candle with increased paraffin wax. They set up an experiment to compare the new candle vs. the old candle.

Collect and gather dataQuantitative Data- measurements of time, temperature, length, or other factors

Qualitative Data- descriptions of what our senses detect

Gather both qualitative and quantitative data about the picture below.

4 . Interpret ResultsA. Analyze data

– Bar graph– Line graph– Pie chart

B. Maybe need to refine and redo experiment

Analyze Data to from a Conclusion• We have to do something with our data!• What can we conclude from this graph?

5. Conclusion1. State if hypothesis is correct or not

2. Refer back to data & explain your results- Ex: Data shows that our hypothesis is incorrect because …

3. Include what you could change in your next experiment or if anything went wrong 4. Wrap up your overall experiment

*Should be a paragraph*

MythBusters!

https://www.youtube.com/watch?v=A20BLo0gxYY