Monday, September 10 th Entry Task Answer the following questions using full sentences, IQIA (Include the Question In the Answer) 1.Explain what an observation is 2.Make an observation about something in this class 3.Explain what an inference is 4.Make an inference about something in this class Schedule: Observations and inferences Homework: Anything not finished in class Objective: I can tell the difference between an observation and an inference Please have on your desk: Supplies to be checked Lab safety contract parent signature sheet TMNT Lab Safety Worksheet

Observations and Inferences Terms Observation- act of noting and recording an event, characteristic, behavior or anything else detected with an instrument or with the senses –Qualitative observations- descriptions of sights, sounds, smells and textures –Quantitative observations- expressed in numbers and include records of time, temperature, mass, distance and volume. Inference- logical conclusion drawn from available evidence and prior knowledge. Attempt to explain what we see.

Tuesday, September 11 th Entry Task Share with your neighbor your observations and inferences worksheet from last nights homework. You both should discuss the answers that you had in common and you should point out ones that you may have missed. Write down at least two similar answers and one different answer in your notebook. Schedule: Hypothesis Identifying Variables Homework Hypothesis and Variables WS Objective: I can understand how to write a hypothesis I can understand how to identify variables Please have on desk: Observations and Inferences WS

Hypothesis Terms –Hypothesis: An explanation for an observation phenomenon –ALWAYS form a hypothesis in an “IF, …….. THEN, …….. BECAUSE……..” statement

Variables Terms –Manipulated Variable: What you are changing –Responding Variable: What your result is-the change you see/measure –Controlled Variable: What you are keeping the same

Homer notices that his lawn has lots of weeds. His friend Barney tells him that Baking Soda will get rid of the weeds. Homer decides to try this out by spraying the right half his lawn with Baking Soda. He continues to simply leave the left half of his lawn alone. Both sides of the lawn get the same amount of sunlight and both receive 50ml of water every other day. Homer runs the experiment for 3 days and then counts how many weeds are in each half of his lawn. Identify the following: Manipulated Variable: Responding Variable: Controlled Variables: (give me 3)

My brother thought that if he ate McDonalds for every meal for thirty days that his weight would go up because McDonalds meals are high in calories. He weighed himself every morning all thirty days and afterwards compared his weight with his weight before the experiment. Identify the following: Manipulated Variable: Responding Variable: Control Variable:

Joe thought his new Nike shoes made him run faster. He decided to test his idea. He measured out 100 meters at his local park, and had a friend time him as he ran 100 meters ten times in his old shoes, and ten times in his new shoes. Joe also waited 2 minutes between each run to catch his breath. Identify the following: Manipulated Variable: Responding Variable: Controlled Variables: (give me 3)

Thursday, September 13 th Entry Task 1. Create a hypothesis for each of the following problems Problem: Is Diet Coke really “Diet” Problem: Does a plant need light to grow 2. What are the 3 variables in an experiment? 3. Identify the 3 variables for the following problem: Does fertilizer make a plant grow bigger? Schedule: Oreo cookie Lab Objective I can understand how to design a lab using the scientific method Homework: Figure out a way to create a graph to represent your data from lab. Do this in your notebook. Please have on desk: Hypothesis Worksheet

Double Stuff Oreos VS Regular Oreos Regular Oreos

The purpose of this experiment is to see if double stuff Oreos are really double stuffed.The purpose of this experiment is to see if double stuff Oreos are really double stuffed.

IF double stuff Oreos are truly double stuffed THEN the double stuff Oreo will have twice the amount of “stuff” than a regular Oreo BECAUSE the company has machines that can fill the Oreos exactly and the company isn’t allowed to lie.IF double stuff Oreos are truly double stuffed THEN the double stuff Oreo will have twice the amount of “stuff” than a regular Oreo BECAUSE the company has machines that can fill the Oreos exactly and the company isn’t allowed to lie.

Manipulated:Manipulated: Type of Oreo – double stuff or regular. Responding:Responding: The mass of the stuff. Controlled:Controlled: The balance used. Oreo brands

1 double stuff Oreo1 double stuff Oreo 1 regular stuff Oreo1 regular stuff Oreo BalanceBalance

1.Gather materials. 2.Carefully twist off one side of the cookie from both Oreos. 3.Measure the mass of the cookie with no filling on it for both cookies using the balance. Record in data table.

4.Measure the mass of each cookie with the filling on it using the balance. Record in data table. 5.Calculate the mass of stuff by subtracting the cookie mass from the cookie + stuff mass. 6.Repeat steps 1-5 twice to have 3 trials total

Friday, September 14 th Entry Task Get out your “how to write a lab report” worksheet. Please read over the remaining sections that we did not get to yesterday. (Data Table  Conclusion). Pay special close attention to the conclusion because you will be doing this on your own later today and will need to know how to do it. Schedule: Oreo Cookie- Lab Data Collect, Analysis and Conclusion Homework: Final Lab Report-due Monday Objective: I can collect data and understand how to analyze data and make a scientific conclusion

Type of cookie Trial # Mass of cookie Mass of cookie + stuff Calculated mass of stuff Regular1ggg 2ggg 3ggg DoubleStuff1ggg 2ggg 3ggg

Graph

Conclusion Use these guidelines to write your conclusion in paragraph form. DO NOT USE THE WORDS “YOU”, “WE”, “I”, “IT”, “MY”, ETC! What was the purpose of the experiment? How does the data answer the question from the problem statement? Give examples from the data to support what the answer is – USE NUMBERS! State whether the hypothesis was supported by the data. Give a different example from the data to explain whether the hypothesis was supported or not – USE NUMBERS! What were possible sources of error in this experiment? Give 2 to 3 specific examples of possible error from the experiment. Summarize what was learned and what the results support.