Mmm Mmm Mmm - Crash Test Dummies (HQ Audio)
Containers for eggs e g small cardboard boxes or three pounds of butter. Bathtubs
To search airbags on the Internet to use this information to design and test a version of an airbag.
This lesson begins with an Internet exploration of how air bags in cars have been developed to solve practical problem saving lives in automobile accidents It also examines some of the security issues surrounding the air sacs Students a chemistry lab where they mix baking soda and vinegar in a Ziploc bag, in order to determine the correct ratio of acid and base that leaves no appreciable amount is reactive behind, but completely inflate the bag inflated bag is similar to airbags in cars Then the students conduct a crash test with a raw egg.
According benchmarks for literacy science students must use different tools to do different things in science and solving practical problems through projects of design and technology, students can participate in solving problems a wide range of real points of reference contexts for science Literacy p 43 research suggests that middle school students are better able to understand the experiences where the goal is a desired outcome, rather than attempting to analyze a Benchmarks causal relationship to p 334 scientific literacy.
It may be helpful to review the chemistry behind airbags ranging How airbags work that provides a detailed description of the operation of an air bag.
Distribute the Student Study Guide Air Bag sheet and have students go How airbags work Students must read page 4 Resource On this site, they will learn how an airbag inflates and is supposed to save the life of a passenger as students go through this resource, they must answer questions about their study guide.
Once students have completed their airbag study guide, you should review the questions with them.
According to the article, which is a major concern with air bags.
According to the article, these are three rules for car drivers with airbags passenger side.
This will lead to a discussion on chemistry airbags behind the engineers who design air bags are able to determine the exact amount of chemicals needed to inflate the air bag to the appropriate volume, and in the right amount time if the air bag is inflated or under inflated too quickly, the passenger will still wounded by flying If the air bag inflates and inflates too slowly, the passenger hit the inflatable airbag and being injured is critical to get just the right amount of gas in the airbag.
Distribute It's Crash Test Dummy sheet student Students are now ready to begin the laboratory During the exploration, the students are trying to find the amount of sodium bicarbonate baking soda necessary to react with 25 ml of vinegar to acetic acid so that the bag is inflated, without appreciable amount of reactant left in order for the students to develop an idea of a limiting reagent according to the atmospheric pressure, the amount of baking soda necessary to fully inflate the bag must be between 1 and 5 3 0 grams.
In this reaction, acetic acid combined with the sodium bicarbonate to form water, carbon dioxide, and sodium acetate The chemical equation for this reaction is.
Carbon dioxide is the gas that fills the bag, and sodium acetate is dissolved in water, it is important for students to realize that this is not exactly how an air bag, but is a good analogy that allows them to simulate the inflation of a class protection.
Prepare for some damage to the egg drop test is recommended that a plastic sheet under the drop zone to help clean it is important to find a container for the egg drop is good cut; butter tubs or small three books shoeboxes work well Also make sure that students wash their hands after handling raw eggs.
Why dangerous air bags for small children and adults.
What are the options for reducing the risk for small adults and children.
Next, assess student understanding by asking students to train and defend an opinion based on the information learned.
If the airbags be mandatory in all cars consumers should have the right to disable.
The student worksheets air bag Study Guide and is a Crash Test, dummy can be collected and used to assess comprehension addition ranking questions, points could be awarded for a crash test successfully.
Apple Newton was a great lesson called airbags and collisions that would function as an extension of this activity.
See if you can find other examples of protective devices against shocks Where are the most common Why do you use tampons for gymnastics What helmets and knee pads-they transfer momentum.
Mix a water balloon in the air stop and analyze what happens when you catch the ball successfully What means did you help transfer momentum.
Design some posters that promote the use of seat belts Hang around the school to promote car safety Why the parents want to put small children in safety seats in the back seat of a car.
People have different views on compulsory seat belt use and air bags In fact, the discussion often includes bicycle helmets and motorcycle for safety as Divide the class into two teams to debate and discuss the issue next is a company that believes in individual decisions regarding security issues require individuals to use equipment that can save lives in an accident.
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