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Brain Stretch Week 1

Brain Stretch Week 1. Tell Me About It…. Write a paragraph about yourself. Include your favorite hobbies, etc… AND choose one of the following: Write a few sentences about an experience you had over the summer. OR Write about a favorite class you’ve had. What made it so wonderful?.

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Brain Stretch Week 1

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  1. Brain StretchWeek 1

  2. Tell Me About It… • Write a paragraph about yourself. Include your favorite hobbies, etc… AND choose one of the following: • Write a few sentences about an experience you had over the summer. • OR • Write about a favorite class you’ve had. What made it so wonderful?

  3. Science Scramble Can you unscramble all the words below?Hint: They are all science terms we will study this year. 1. ODOFWBE 2. LECOGOY 3. MATO 4. LSCEL 5. INASMAL 6. PTSLAN 7. EIGESNTC 8. AND 9. RSECPMIOSCO 10. USIRV

  4. Think Back Can you remember the steps of the scientific method? 1. People 2. Really 3. Hate 4. Eating 5. Over Ripe 6. Cheese

  5. Experiment Set 1 Mrs. High and Mrs. Monte love to go fishing. They wondered if a new brand of fish bait would help them catch more fish. They hypothesized that if they used the new bait, they would catch more fish. To test their idea, they bought a big container of bait for their next 3 trips to their top-secret fishing spot. Mrs. High fished without any bait, while Mrs. Monte used the new bait. Both of them kept track of how many fish they caught in 30 minutes, which is shown in the chart. • Which person was the control? 2. What is the independent variable? 3. What is the dependent variable? 4. Based on the data, how would you rate the new bait?

  6. Brain Stretch Week 2

  7. Experiment Set 2 Mr. Hinger loves to grow flowers for his wife who loves big, colorful flowers. He found a new brand of seeds coated with a special “booster” fertilizer that said it would produce huge flowers. He planted 5 of the new seeds in one container and 5 of the old brand of seeds in another container. He placed both containers on a sunny windowsill and watered them every day. He measured the diameter of each flower, which is shown in the chart. • Which group was the control? 2. What is the independent variable? 3. What is the dependent variable? 4. What is the average diameter for each group? 5. Which seeds are the best for big flowers?

  8. Experiment Set 3 Mr.Candelaria wants to determine if caffeine enhances dance performance. He wishes to dance like Michael Jackson (seriously, ask him to show you). He performs an experiment. He gives 10 people a cup of regular coffee and another 10 people a cup of decaffeinated coffee before a dance-off. Which group is the variable group and which is the control group? What is the independent variable and what is the dependent variable? Variable Group?_________________________________________ Control Group?_________________________________________ Why is it important to test a control group?___________________ Independent Variable?___________________________________ Dependent Variable?_____________________________________

  9. Science Scramble Can you unscramble all the words below?Hint: Scientific Method 1. REEDPOCRU 2. TADA 3. NEDETEPDN 4. EBRPOLM 5. MNRPTXEIEE 6. NOCTLOR 7. NEDETEPDNIN 8. AIALVBRE 9. SEIPOHYHTS 10. ERACSRHE

  10. Data Set 1 • What is the independent variable? 3. How many 13-year olds have a cell phone? 4. Can you explain the “dip” when teens turn 18? 2. What is the dependent variable?

  11. Data Set 2 Some species of bacteria are harmful. Antibiotics are chemicals that kill bacteria. Some bacteria are resistant to antibiotics and are not killed by these chemicals. Over time, the resistant bacteria can reproduce and create populations that are not affected by antibiotics. The graphs below show the results of a controlled experiment that measured the population of one species of bacteria that had been grown in four containers under identical conditions. Different antibiotics were added to three of the four containers. 1. Conclusion? Which antibiotic (A, B or C) was most effective in controlling growth? 2. What is the control in this experiment? 3. What is the independent variable? Dependent?

  12. Brain Stretch Week 3

  13. What’s wrong? Identify 6 different safety concerns shown in the picture below. L A B S A F E T Y

  14. Mystery Photo Identify what is in this picture.

  15. Measure it! What is the metric unit used to measure length? What English unit would be used to measure the distance from Pagosa to Durango? What SI unit would be used to measure the distance from Pagosa to Durango. What SI unit would be used to measure the diameter of a penny? What is a prefix?

  16. Measure it! cm 1. What is the length of the red line above in centimeters? 2. What is the length of the red line above in millimeters? 3. What is the length of the red line above in centimeters?

  17. Fool You? Explain what you see in this picture. Describe how a pool ball could float in this liquid.

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