BELLWORK 9 1117 Get ready for bellwork 1
BELLWORK 9 -1117 Get ready for bellwork!
1. A group of engineers designed and constructed a flying car prototype. Their goal is for the car to enable people to safely fly to and from work instead of getting stuck in traffic jams. How will the engineers determine that this prototype meets their design specifications? a. b. c. d. Have a test pilot attempt to fly it from one location to another. See if the car can hover one meter above the ground for 20 minutes. Drive on the car at highway speeds on an interstate roadway at night time. Research how flying cars have worked in the past.
2. A bottle company discovered that caps were being applied with too much force. This caused many bottles to break. Engineers adjusted the capping device so it applies less force to the caps. Which steps should the engineers take before the adjustment is considered successful? a. replace the bottle caps with different caps that cover a larger bottle opening b. inspect bottles that have passed through the capping device after the adjustment c. compare their capping machine to similar machine in other factories d. make a new machine to put the caps on
3. A calcium supplement designed to make bones stronger was given to two groups of people during a scientific study as displayed in the table below Dosage Group 1 30 mg each day Group 2 60 mg each day After 60 days, all the people had their bone density tested and the results appeared to show that their bones were marginally stronger. However they neglected a key task when they did their experiments. Identify the key task that they did not do. a. b. c. d. Give the supplement to both groups for only 30 days Test only one group with 100 mg of the supplement Create a third group that receives 75 mg of the supplement Create a third group (a control group) that does not receive the supplement
4. Famous engineer and chemist, Alfred Nobel, invented dynamite in 1867 to help miners tunnel through mountains. However he was later appalled to learn that his invention was being used for warfare. What was an unintended consequences of dynamite? a. Dynamite was used to make bombs and other explosive weapons for combat. b. His invention helped miners not have to dig tunnels with picks and hammers. c. Road builders used dynamite to demolish large rocks that were in their way. d. His invention helped minors job easier and quicker.
5. There are many different types of bioengineering products available today. Which of the technology products shown below is adaptive instead of assistive? a. b. c. d. a removable hearing aid for the hearing impaired wheelchairs for people who have trouble walking the surgical replacement of a heart valve contact lenses for near-sighted people
6. A company designed a robotic lawn mower prototype to mow lawns without any human supervision. They intend to sell this machine to landscaping companies and lawn and gardening stores. Which of the following would be the BEST method to test this prototype? a. Place the mower on a field of freshly cut grass. Leave the machine there for three hours. Return to the field later to pick up the mower. b. First: identify a need. Second: Develop several designs, Third: Build a prototype, Fourth: Test the prototype, Fifth: Modify and retest the prototype c. Design a computer simulation of the robotic lawn mower. Practice cutting the grass in this simulated environment for one hour. d. Take the machine to a grassy field. Turn it on, leave it there, and come back in two hours to see if the grass is mowed.
7. 3000 mg = _______g a. b. c. d. 3 g 30 g. 3 g 30000 g
Classification Video Time to check bellwork!
1. A group of engineers designed and constructed a flying car prototype. Their goal is for the car to enable people to safely fly to and from work instead of getting stuck in traffic jams. How will the engineers determine that this prototype meets their design specifications? a. b. c. d. Have a test pilot attempt to fly it from one location to another. See if the car can hover one meter above the ground for 20 minutes. Drive on the car at highway speeds on an interstate roadway at night time. Research how flying cars have worked in the past.
2. A bottle company discovered that caps were being applied with too much force. This caused many bottles to break. Engineers adjusted the capping device so it applies less force to the caps. Which steps should the engineers take before the adjustment is considered successful? a. replace the bottle caps with different caps that cover a larger bottle opening b. inspect bottles that have passed through the capping device after the adjustment c. compare their capping machine to similar machine in other factories d. make a new machine to put the caps on
3. A calcium supplement designed to make bones stronger was given to two groups of people during a scientific study as displayed in the table below Dosage Group 1 30 mg each day Group 2 60 mg each day After 60 days, all the people had their bone density tested and the results appeared to show that their bones were marginally stronger. However they neglected a key task when they did their experiments. Identify the key task that they did not do. a. b. c. d. Give the supplement to both groups for only 30 days Test only one group with 100 mg of the supplement Create a third group that receives 75 mg of the supplement Create a third group (a control group) that does not receive the supplement
4. Famous engineer and chemist, Alfred Nobel, invented dynamite in 1867 to help miners tunnel through mountains. However he was later appalled to learn that his invention was being used for warfare. What was an unintended consequences of dynamite? a. Dynamite was used to make bombs and other explosive weapons for combat. b. His invention helped miners not have to dig tunnels with picks and hammers. c. Road builders used dynamite to demolish large rocks that were in their way. d. His invention helped minors job easier and quicker.
5. There are many different types of bioengineering products available today. Which of the technology products shown below is adaptive instead of assistive? a. b. c. d. a removable hearing aid for the hearing impaired wheelchairs for people who have trouble walking the surgical replacement of a heart valve contact lenses for near-sighted people
6. A company designed a robotic lawn mower prototype to mow lawns without any human supervision. They intend to sell this machine to landscaping companies and lawn and gardening stores. Which of the following would be the BEST method to test this prototype? a. Place the mower on a field of freshly cut grass. Leave the machine there for three hours. Return to the field later to pick up the mower. b. First: identify a need. Second: Develop several designs, Third: Build a prototype, Fourth: Test the prototype, Fifth: Modify and retest the prototype c. Design a computer simulation of the robotic lawn mower. Practice cutting the grass in this simulated environment for one hour. d. Take the machine to a grassy field. Turn it on, leave it there, and come back in two hours to see if the grass is mowed.
7. 3000 mg = _______g a. b. c. d. 3 g 30 g. 3 g 30000 g
I can… List the 8 levels of classification? TOC #13 Classification Notes #14 Branching Diagram
Classification means organizing living things into groups based on their similarities. Scientists classify living and extinct organisms to make them easier to study. Organisms are classified by shared characteristics and their relationships between one another.
Taxonomy The science of classifying organisms is called taxonomy. Taxonomy was founded by Linnaeus in the 1700 s. He classified things only by their shared characteristics.
The levels of classification go from very general to very specific.
Here’s how the groupings work: Animal w/ backbone Bird (egg-layers with feathers) In the Biological classification system, each level of subdivision has its name. Here are the traditional names… Eyes cannot move in socket, so whole head moves Circular facial disk rather than heart shaped Horned Owl Scientific Name At every step down the classification ladder, the thing that is the specific owl is narrowed down. Humans and birds are alike down to the class level.
Domain. . . . Did Kingdom. . . . King Phylum. . . . Philip Class. . . . . Come Order. . . . . Over Family. . . . . For Genus. . . . . Grape Species. . . . . Soda
Scientific Name When living things are classified, they get a scientific name. The scientific name is the same anywhere in the world. Binomial Nomenclature
The 4 Rules to writing a Scientific Name: 1. Scientific names are usually Latin or Greek. 2. The scientific name is always the genus and species name together. 3. The genus is always written first and capitalized. The species is second and is always lower case. 4. The scientific name is always italicized or underlined. Example: Felis domesticus
Same group Partner Lion Tiger �Kingdom Animalia �Phylum Chordata �Class Mammalia �Order Carnivora �Family Felidae �Genus Panthera �Species leo tigris With your same group partner decide what is the same about the lion and tiger? What is different?
Domains and Kingdoms Bacteria are prokaryotic, meaning they do NOT have a nuclei. All other living things are eukaryotic and have nuclei.
Scientists use 3 Domains: A Domain is the largest group into which living things can be classified. Archaea Prokaryotes (no Bacteria nucleus, single-celled organism) Eukarya Eukaryotes (have nucleus)
Scientists use 6 Kingdoms: 1. Archaebacteria 2. Eubacteria 3. Protista 4. Plantae 5. Fungi 6. Animalia
Domain: Archaea Kingdom: Archaebacteria ■ Live in extreme environments (very hot or cold). They have been on earth for about 3 billion years. You can find Archaea in hot springs at Yellowstone.
Domain: Bacteria Kingdom: Eubacteria ■ Most bacteria live in Kingdom Eubacteria. They live in many place all over earth and even inside other organisms. Have rigid cell walls. E. Coli lives in the intestines of animals and decompose undigested food.
Domain: Eukarya Kingdom: Protista ■ Consists of unicellular and simple multicellular organisms. Protista includes organisms that are not plants, animals, or fungi. They make their own food or feed on once living things. Zooflagellates Paramecium
Domain: Eukarya Kingdom: Plantae ■ Plants are usually green and make food by photosynthesis. They are complex, multicellular organisms. ■ In this kingdom, live the oldest unitary organisms in the world. . .
Domain: Eukarya Kingdom: Fungi ■ They absorb food from their surroundings (lving or dead). Fungi are usually multicellular (except yeast).
Domain: Eukarya Kingdom: Animalia ■ Most move around, have nervous systems, feed on other living things or once living things. Animals are complex & multicellular. Most living things have a common name such as brown bear.
What is a Branching Diagram? Definition A branching diagram is a diagram that shows the relationships among biological species based upon similarities and differences in the physical and/or genetic characteristics. Purpose The purpose of a branching diagram is to examine the relationship and common characteristics between organisms. Objective: Can I use a dichotomous key to identify an unknown organism?
Whole Class Objective: Can I use a dichotomous key to identify an unknown organism?
Group Practice ■ Frog ■ Kangaroo ■ Snake ■ Rabbit ■ Air breathing; ability to live on land ■ Lay eggs on dry land; dry skin ■ Fur; live birth ■ Young develop fully inside mother Draw this on your white piece of paper and fill-in. Objective: Can I use a dichotomous key to identify an unknown organism?
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