1. Do Now 1) Convert the following: A. 450 kg = ____g B. 18 mm = _____cm C. TRICK! 200 mm = ____hm 2) How many pretzels do you think a student can eat in 2 minutes?

2. Journal Expectations  You can leave it here or take it home  Left side = assignments/Do Now/reflection  Right side= notes/study guide/vocabulary  YOUR RESPONSIBILITY

3. Scientific Process  Ask a Question  Form a hypothesis  Test the hypothesis with a controlled experiment by making observations and gathering data  Observation  Accept or reject your hypothesis  Form a conclusion

4. Real Life Example  How many pretzels do you think a student can eat in 2 minutes?  Lets Use the Scientific Method !

5. Bank Robbery Just the other day, a man walked into First National Bank of Pleasantville, held up a gun, and demanded money from the teller. The teller handed over an estimated $10,000.The robber put it in a brown paper bag and fled on a purple motorbike.Detective Goodman was called to the bank to investigate the crime. What is Detective Goodman's problem?

6. Step One – Identifying the Problem Detective Goodman's problem is "who robbed the bank?"

7. When Detective Goodman arrived at the scene of the crime, he talked to the teller and several eye witnesses. He discovered that the robber was wearing sunglasses, overalls, and a floppy, green hat. The detective searched the grounds outside the bank. On the sidewalk he found a floppy, green hat, which must have fallen off as the criminal fled on the purple motorbike. Upon examining the hat, he found the initials "T. S." stitched on the inside. The detective also found a gun in the bushes. Detective Goodman ran a check on the gun and found that it was registered to a Tim Smith. Step TwoStep Two What information does Detective Goodman gather? Step Three Who does Detective Goodman thinks robbed the bank? Step Four How will Detective Goodman find out if what he thinks is right? Step Three Step Four

8. Detective Goodman went to Tim Smith's residence to question him. However, Tim Smith was not at home. His neighbors informed the detective that Tim Smith was in the hospital with a broken leg. The detective went to the hospital to confirm Tim Smith's alibi. Sure enough, Tim Smith was in the hospital recovering from a compound fracture of his lower leg. He had been in the hospital for the past two weeks. Step 5Step 5 After further review, could Tim Smith have robbed the bank? Step 6 Did Tim Smith rob the bank? Step 1 What is Detective Goodman's problem? Step 6 Step 1

9. As Detective Goodman questioned Tim Smith, he discovered that Tim Smith's apartment had been robbed. Two of the things that had been stolen were his floppy, green hat and gun. Tim Smith allowed the detective to search his apartment for fingerprints. Detective Goodman found fingerprints that belonged to a John Thomas. Step 2Step 2 What does Detective Goodman learn from questioning Tim Smith? Step 3 Does Detective Goodman have a new suspect for the bank robbery? Step 3

10. CASE CLOSED! Detective Goodman obtained a search warrant and went to the home of John Thomas. In the basement of John Thomas's home, he discovered a paper bag full of money and a purple motorbike.Upon further investigation, the serial numbers matched the serial numbers of the money that had been stolen from the First National Bank. Without further delay, Detective Goodman arrested John Thomas and charged him with the robbery of the bank.

11. CHEWING GUM CHALLENGE Groups of 5. Please consider:  You will receive 2 grades: 1. The group data sheet you will turn in 2. Peer Evaluation

12. END

13. Step 2 – Gather Information Detective Goodman talked to the teller and eyewitnesses and discovered the robber: wore sunglasses wore overalls wore a floppy green hat fled with $10,000 in a brown paper bag fled on a purple motorbike Detective Goodman searched the grounds outside the bank and found: floppy green hat with T. S. stitched in it a gun registered to a Tim Smith BACK

14. Step 3 – Form a Hypothesis Based on the information that Detective Goodman gathered, he thinks that "Tim Smith is the bank robber."information BACK

15. Step 4 – Test the Hypothesis Detective Goodman will have to "question Tim Smith" to see if his hypothesis is correct. hypothesis BACK

16. Step 5 – Analyze Data What Neighbors Said Hospital Confirms In Hospital In Hospital For the Past Two Weeks Broken Leg Compound Fracture Of His Lower Leg BACK

17. Step 6 – Come to a Conclusion Because the bank robber escaped on a motorbike, Detective Goodman concludes that Tim Smith is not the bank robber. He could not possibly have ridden the motorbike with his broken leg. BACK

18. Step One – Identifying the Problem Detective Goodman's problem is "who robbed the bank?" BACK

19. Step 2 – Gather Information Detective Goodman questioned Tim Smith Found out Tim Smith's apartment had been robbed Floppy, green hat and gun were stolen Searched Tim Smith's apartment for fingerprints Found fingerprints to a John Thomas Back

20. Step 3 – Form a Hypothesis Based on the information that Detective Goodman gathered, he thinks that "John Thomas might be the bank robber." information Back