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Warm Up

What is your favorite breakfast cereal? What kinds of toys can you often find inside or on the box? Why do you think cereal companies spend the money putting toys inside?. Warm Up. Graph your data from your second Cookie Sandwich Trial on the same sheet of paper as the other graph

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Warm Up

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  1. What is your favorite breakfast cereal? What kinds of toys can you often find inside or on the box? Why do you think cereal companies spend the money putting toys inside? Warm Up

  2. Graph your data from your second Cookie Sandwich Trial on the same sheet of paper as the other graph • When you are done, open your books to page 32 and answer questions 1-4 and Reflection question number 1 on page 33. Finishing up Cookie Sandwich

  3. Watch the 3 demonstrations and write your… • Predictions • What you observed • Compare • Book vs. paper • 7 coffee filters vs 1 coffee filter • 7 connected coffee filters vs. 1 coffee filter Observations

  4. After the demonstrations last class, what factors do you think affect the rate at which objects fall? Do you think the rate of falling for an object would be different on different planets? How so? Warm Up

  5. Independent Variable – The variable that the scientists intentionally changes. • Control Variable – The variables that are kept constant (not changed). • Dependent Variable – The variables whose values are measured. • Structure – The way the parts of an item are put together. • Mechanism – The way the parts of an object connect and move. • Trend – A pattern or tendency. Whirligig Challenge Vocabulary

  6. Project Board Copy this in your notebook.

  7. (10 min) Answer the following questions in a 3-4 sentence paragraph: • A gardener wants to find out how much fertilizer is needed to grow large tomatoes in a greenhouse. To conduct the experiment, she will water the plants at exactly the same time with the same amount of water, and they will be exposed to the same amount of sunlight. She will vary (change) the amount of fertilizer she gives each plant. One plant will not receive any fertilizer. She will record the time of day as well as the amount of water that she gives each plant. After 15 days she measures the size of the tomatoes and records the results. In a paragraph, identify the variables: 1) independent, 2) control, and 3) dependent. Warm Up

  8. In your group try to test a single variable and write detailed instructions and answer in complete sentences Experiment Planning

  9. Question: • What question are you investigating and answering with this experiment? • Prediction: • What do you think the answer is and why do you think that? • Variable Identification: • Which part of the whirligig you will be changing? • Which variable you will manipulate? • Which conditions and procedures you will keep the same? • What will you measure? • How many trials will you do for each value of your manipulated variable? • Procedure and Data: • Write detailed instructions for how to conduct the experiment. • How you will set up the whirligig? • How you will drop it? • How you will record the data? • How many trials you will do? Experiment Planning

  10. If you dropped a whirligig and a book from the same height at the same time, the whirligig would take longer to reach the ground. Why do you think this happens? What is the whirligig interacting with besides Earth? Warm Up

  11. Interpret: to find the meaning of something • Claim: A statement of what you understand or a conclusion that you have reached from an investigation or set of investigations • Evidence: data collected during investigations and trend in that data • Science Knowledge: Knowledge about how things work gathered from reading or research or discussion that helps you understand why a claim is true • Valid: has a solid justification • Recommendation: A claim that suggests what to do in certain situations • Investigation Expo: A presentation of the procedure, results, and interpretations of results of an investigation • Fair test: Things that are being compared are being tested under the same conditions, and the test matches the questions being asked. Vocabulary

  12. What variable were you investigating in your experiment? What were you investigating about that variable? How did you vary it to determine its effects? • List all of the variables you tried to hold constant in your experiment • How many trials did you perform? Explain why you performed that number of trials. Was this a good number of trials? • How consistent was your set of data? Why is consistency in repeated trials important in an experiment? • Do you think that the data set you collected was useful in determining the effect your variable had on the fall of the Whirligig? Why or why not? • What do you think you know now about how things fall that would allow you to design a better whirligig than the one you started with? Do you know enough to explain your results? Reflect Pg. 52 1-6

  13. You will share what you investigated with the class. Remember, half of the class did not investigate your claim so be VERY detailed! Communication Expo

  14. Vocabulary worksheet due on Friday (10/18) for A - day and Monday (10/21) for B-day classes. • Answer in complete sentences, it will be graded for content! Homework

  15. Based on what you know now, make a recommendation to the cereal company on how to design the whirligig and explain why you made this recommendation. 3-4 Complete sentences! Warm Up 10/18-10/21

  16. Air resistance (drag): the opposing push that resists the movement of an object through air • Force: a push or pull of an object Whirligig Science

  17. How does gravity pull down on a whirligig? • How does air resistance push up on a whirligig? • What changes when you add paper clips to the stem? How does that affect the way the whirligig falls? • What changes when you make the blades longer? How does that affect the way whirligig falls? Stop! And think!

  18. Quiz Tuesday (A day classes) and Wednesday (B day classes) • Independent Variable • Dependent Variable • Control Variable • Interpret • Claim • Trends Quiz

  19. Choose a question from the “What do we need to investigate?” column on your project board and explain how you would write a procedure to test that question. Explain in 3-4 complete sentences! Warm-up 10/22 & 10/23

  20. Write five questions that you think would be good test questions for the Unit test on Diving Into Science Warm Up 10/24 – 10/25

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