Name: __________________________________ Hour: _____________ Science Is A Way Of Knowing (Construct a Concept) Category Name: BeriBeri Penicillin Bart Simpson SpongeBob & Patrick MythBusters Your Team’s Definition of each column Book Definition of each column Science Is A Way of Knowing Stories: The Strange Case of BeriBeri In 1887 a strange nerve disease attacked the people in the Dutch East Indies. The disease was beriberi. Symptoms of the disease included weakness and loss of appetite, victims often died of heart failure. The scientists read medical books and found several other similar diseases that were caused by bacteria. Scientists thought the disease might be caused by bacteria. They injected chickens with bacteria from the blood of patients with beriberi. The injected chickens became sick. However, so did a group of chickens that were not injected with bacteria. One of the scientists, Dr. Eijkman, noticed something. Before the experiment, all the chickens had eaten whole-grain rice, but during the experiment, the chickens were fed polished rice. Dr. Eijkman researched this interesting case. He found that polished rice lacked thiamine, a vitamin necessary for good health. How Penicillin Was Discovered In 1928, Sir Alexander Fleming was studying Staphylococcus bacteria growing in culture dishes. He noticed that a mold called Penicillium was also growing in some of the dishes. A clear area existed around the mold because all the bacteria that had grown in this area had died. He thought this was strange so he looked in the culture dishes without the mold and no clear areas were present. The bacteria had not died in these. Fleming thought that the mold must be producing a chemical that killed the bacteria. He decided to isolate this substance and test it to see if it would kill bacteria. Fleming transferred the mold to a nutrient broth solution. This solution contained all the materials the mold needed to grow. After the mold grew, he removed it from the nutrient broth. Fleming then added the nutrient broth in which the mold had grown to a culture of bacteria. He observed that the bacteria died in the cultures he added the mold nutrient broth to. Bart Simpson Grows Vegetables Bart Simpson loves to grow broccoli for his dad, Homer, who loves big, colorful broccoli. He found a new brand of seeds coated with a special “booster” fertilizer that said it would produce huge vegetables. He went and talked to Apu, who is a great gardener, and asked him if he thought fertilizer could cause vegetables to grow bigger. Apu said he thinks so. So Bart 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 plant, which is shown in the chart. Old Seeds 10 cm 12 cm 14 cm 6 cm 8 cm New Seeds 8 cm 14 cm 10 cm 12 cm 16 cm SpongeBob and Patrick Go Deep Sea Diving SpongeBob and Patrick love to go deep sea diving. They wondered if a new brand of diving suit would help them dive deeper. They wondered why and checked online. They found that they new suit has a new type of material that is supposed to help with going deeper faster and it has more weight. They definitely thought this new suit would be better. To test their idea, they bought one new suit and used one old suit for their next 3 trips to their top-secret diving spot. SpongeBob dived with the old suit, while Patrick used the new suit. Both of them kept track of how deep they were able to dive in 30 minutes, which is shown in the chart. SpongeBob Patrick 30 31 18 28 26 25 Mythbusters Get Green Thumbs The Mythbusters team uncovers the myth of if you talk to your plants they will grow better. They start by talking to a botanist (a person who studies plants) and the botanist says that they don’t really know, but they doubt it. Jamie and Adam put the myth to the test thinking that the extra talking will not help the plants grow more. They buy two ivies. Both plants will get the same amount of water and sunlight but they will each talk to only one plant for 5 minutes each day. They measure the height of each plant at the end of each week for one month. At the end of one month, the plant that did not get the extra talking was 2cm taller. Category Book Definitions: Book Definition Category Name Focusing an State the Question observation. Beginning with how, when, why, where, or how is a good start. Process of finding out what is already known about a subject. An educated guess. Gather Information Form a Hypothesis Conducting an experiment Test /Observe Graphs, tables, data Results and charts that describe the findings in an experiment Based on analyzing the results you should be able to describe whether to accept or reject the hypothesis. Conclusion