1. Unit 1 – Scientific Method Essential Questions What is science all about? How do scientists solve problems? How do scientists measure and record information?

2. Unit 1 – Scientific Method Lesson 1 – How Science Works: Vocabulary science technology

3. Unit 1 - Scientific Method Lesson 2 – Using Scientific Methods: Vocabulary scientific method hypothesis constant variable control

4. Unit 1 - Scientific Method Lesson 2 – Using Scientific Methods Step by step procedures of scientific problem solving are called scientific methods. According to the video there are 8 steps in the scientific method. Step 1) Recognize the problem or State the question: What is it you are trying to figure out?

5. Unit 1 - Scientific Method Lesson 2 – Using Scientific Methods (cont.) Step 2) Research: What information can you find and where do you find it? Step 3) Hypothesis: a statement that can be tested (based upon research). Step 4) Plan the experiment or Write down procedures: What step by step process will be followed?

6. Unit 1 - Scientific Method Lesson 2 – Using Scientific Methods (cont.) In an experiment, it’s important to keep everything the same (constants) except the factor you are testing (variable). Some experiments use a control, a standard used for comparison.

7. Unit 1 - Scientific Method Lesson 2 – Using Scientific Methods (cont.) Step 5) Do the experiment: Does your experiment have a control group and an experimental group (1 variable)? Step 6) Observe and record results: What bit of information did you gather with your senses and how did you write it down? Don’t make it up. Step 7) Analyze results or Interpret data: Summarize data in sentences.

8. Unit 1 - Scientific Method Lesson 2 – Using Scientific Methods (cont.) Step 8) Draw (state) conclusions: What inferences, conclusions about observations, can you make based upon the data? Always refer back to your hypothesis in the conclusion.

9. Unit 1 - Scientific Method Lesson 2 – Using Scientific Methods: Paper Towel Lab – Day 1 Step 1) Question: Which paper towel is the most absorbent? Step 2) Research: Use the four samples provided by the teacher: Bounty, Viva, Brawny, and the generic. Step 3) Hypothesis: ____________ will be the most absorbent, as measured by how much water it held.

10. Unit 1 - Scientific Method Lesson 2 – Using Scientific Methods: Paper Towel Lab – Day 1 (cont.) Step 4) Procedures: – a) Get one sample of each paper towel. – b) Get a ruler and a cup. – c) Mark a fill line on the cup (at least half way up), then fill the cup. – d) Put paper towel in cup, submerge for 30 seconds, remove and hold over cup for 1 minute. (discard towel, do not ring out) – e) Record difference on data table.

11. Unit 1 - Scientific Method Lesson 2 – Using Scientific Methods: Paper Towel Lab – Day 1 (cont.) Step 5) Perform: Do it! (on Day 2) Step 6) Data Table: Brands Amount (cm)

12. Unit 1 - Scientific Method Lesson 2 – Using Scientific Methods: Paper Towel Lab – Day 2 Step 7) Interpret Data: Summarize data in sentences. Step 8) Conclusion: – Make an inference (or two). – Refer to your hypothesis.

13. Unit 1 - Scientific Method Lesson 3 – Measurement: Vocabulary measurement estimation meter masskilogram rate tablegraph

14. Unit 1 - Scientific Method Lesson 3 – Measurement Measurement is a way to describe the world with numbers. It answers such questions as how much, how long, or how far. Estimation can help you make a rough measurement of an object by guessing. Estimation is used to check that an answer is reasonable.

15. Unit 1 - Scientific Method Lesson 3 – Measurement (cont.) Length is measured using the meter (m). Volume is measured using the liter (l). We will use the milliliter (ml). Mass, the amount of matter in an object, is measured using the kilogram (kg). We will use the gram (g). Time is measured in seconds (s).

16. Unit 1 - Scientific Method Lesson 3 – Measurement (cont.) A rate is a ratio of two measurements with different units. A table displays information in rows and columns so that it is easier to read and understand. A graph is used to collect, organize and summarize information in a visual way.

17. Unit 1 - Scientific Method Lesson 3 – Measurement : Walk/ Run Lab – Day 1 Step 1) Question: Who is the fastest walker and runner? Step 2) Research: Use the stopwatch and each other. Step 3) Hypothesis: ____________ will be the fastest walker and __________ will be the fastest runner, as measured by the stopwatch.

18. Unit 1 - Scientific Method Lesson 3 – Measurement : Walk/ Run Lab – Day 1(cont.) Step 4) Procedures: – a) Get a meter stick and stopwatch. – b) Measure the distance to be used and record on your data table. [TAPE LINE] – c) Use the stopwatch to time each walking round trip, record on data table. – d) Use the stopwatch to time each running round trip, record on data table.

19. Unit 1 - Scientific Method Lesson 3 – Measurement : Walk/ Run Lab – Day 1 (cont.) Step 5) Perform: Do it! (on Day 2) Step 6) Data Table: Time to walk and run X m Student (name) Walking time (s) Running time (s) Walking speed m/s Running speed m/s

20. Unit 1 - Scientific Method Lesson 3 – Measurement : Walk/ Run Lab – Day 2 Step 7) Interpret Data: Make a graph with two labeled lines, one for walking and one for running. Step 8) Conclusion: – E– Explain your results (graph). – Refer to your hypothesis.